diff --git a/api/src/main/java/run/halo/app/event/post/PostDeletedEvent.java b/api/src/main/java/run/halo/app/event/post/PostDeletedEvent.java
new file mode 100644
index 000000000..7330f8efa
--- /dev/null
+++ b/api/src/main/java/run/halo/app/event/post/PostDeletedEvent.java
@@ -0,0 +1,24 @@
+package run.halo.app.event.post;
+
+import run.halo.app.core.extension.content.Post;
+import run.halo.app.plugin.SharedEvent;
+
+@SharedEvent
+public class PostDeletedEvent extends PostEvent {
+
+    private final Post post;
+
+    public PostDeletedEvent(Object source, Post post) {
+        super(source, post.getMetadata().getName());
+        this.post = post;
+    }
+
+    /**
+     * Get original post.
+     *
+     * @return original post.
+     */
+    public Post getPost() {
+        return post;
+    }
+}
diff --git a/api/src/main/java/run/halo/app/event/post/PostEvent.java b/api/src/main/java/run/halo/app/event/post/PostEvent.java
new file mode 100644
index 000000000..1d672b220
--- /dev/null
+++ b/api/src/main/java/run/halo/app/event/post/PostEvent.java
@@ -0,0 +1,27 @@
+package run.halo.app.event.post;
+
+import org.springframework.context.ApplicationEvent;
+
+/**
+ * An abstract class for post events.
+ *
+ * @author johnniang
+ */
+public abstract class PostEvent extends ApplicationEvent {
+
+    private final String name;
+
+    public PostEvent(Object source, String name) {
+        super(source);
+        this.name = name;
+    }
+
+    /**
+     * Gets post metadata name.
+     *
+     * @return post metadata name
+     */
+    public String getName() {
+        return name;
+    }
+}
diff --git a/api/src/main/java/run/halo/app/event/post/PostPublishedEvent.java b/api/src/main/java/run/halo/app/event/post/PostPublishedEvent.java
new file mode 100644
index 000000000..0c446d864
--- /dev/null
+++ b/api/src/main/java/run/halo/app/event/post/PostPublishedEvent.java
@@ -0,0 +1,12 @@
+package run.halo.app.event.post;
+
+import run.halo.app.plugin.SharedEvent;
+
+@SharedEvent
+public class PostPublishedEvent extends PostEvent {
+
+    public PostPublishedEvent(Object source, String postName) {
+        super(source, postName);
+    }
+
+}
diff --git a/api/src/main/java/run/halo/app/event/post/PostUnpublishedEvent.java b/api/src/main/java/run/halo/app/event/post/PostUnpublishedEvent.java
new file mode 100644
index 000000000..52c1c03e3
--- /dev/null
+++ b/api/src/main/java/run/halo/app/event/post/PostUnpublishedEvent.java
@@ -0,0 +1,12 @@
+package run.halo.app.event.post;
+
+import run.halo.app.plugin.SharedEvent;
+
+@SharedEvent
+public class PostUnpublishedEvent extends PostEvent {
+
+    public PostUnpublishedEvent(Object source, String postName) {
+        super(source, postName);
+    }
+
+}
diff --git a/api/src/main/java/run/halo/app/event/post/PostUpdatedEvent.java b/api/src/main/java/run/halo/app/event/post/PostUpdatedEvent.java
new file mode 100644
index 000000000..74c9123d5
--- /dev/null
+++ b/api/src/main/java/run/halo/app/event/post/PostUpdatedEvent.java
@@ -0,0 +1,12 @@
+package run.halo.app.event.post;
+
+import run.halo.app.plugin.SharedEvent;
+
+@SharedEvent
+public class PostUpdatedEvent extends PostEvent {
+
+    public PostUpdatedEvent(Object source, String postName) {
+        super(source, postName);
+    }
+
+}
diff --git a/api/src/main/java/run/halo/app/event/post/PostVisibleChangedEvent.java b/api/src/main/java/run/halo/app/event/post/PostVisibleChangedEvent.java
new file mode 100644
index 000000000..c3579f847
--- /dev/null
+++ b/api/src/main/java/run/halo/app/event/post/PostVisibleChangedEvent.java
@@ -0,0 +1,30 @@
+package run.halo.app.event.post;
+
+import org.springframework.lang.Nullable;
+import run.halo.app.core.extension.content.Post;
+import run.halo.app.plugin.SharedEvent;
+
+@SharedEvent
+public class PostVisibleChangedEvent extends PostEvent {
+
+    @Nullable
+    private final Post.VisibleEnum oldVisible;
+
+    private final Post.VisibleEnum newVisible;
+
+    public PostVisibleChangedEvent(Object source, String postName,
+        @Nullable Post.VisibleEnum oldVisible, Post.VisibleEnum newVisible) {
+        super(source, postName);
+        this.oldVisible = oldVisible;
+        this.newVisible = newVisible;
+    }
+
+    @Nullable
+    public Post.VisibleEnum getOldVisible() {
+        return oldVisible;
+    }
+
+    public Post.VisibleEnum getNewVisible() {
+        return newVisible;
+    }
+}
diff --git a/application/src/main/java/run/halo/app/plugin/SharedEvent.java b/api/src/main/java/run/halo/app/plugin/SharedEvent.java
similarity index 82%
rename from application/src/main/java/run/halo/app/plugin/SharedEvent.java
rename to api/src/main/java/run/halo/app/plugin/SharedEvent.java
index 3174c5e43..a62026c9d 100644
--- a/application/src/main/java/run/halo/app/plugin/SharedEvent.java
+++ b/api/src/main/java/run/halo/app/plugin/SharedEvent.java
@@ -9,8 +9,7 @@ import java.lang.annotation.Target;
 /**
  * <p>It is a symbolic annotation.</p>
  * <p>When the event marked with {@link SharedEvent} annotation is published, it will be
- * broadcast to the application context of the plugin by
- * {@link PluginApplicationEventBridgeDispatcher}.</p>
+ * broadcast to the application context of the plugin.
  *
  * @author guqing
  * @since 2.0.0
diff --git a/application/src/main/java/run/halo/app/core/extension/reconciler/PostReconciler.java b/application/src/main/java/run/halo/app/core/extension/reconciler/PostReconciler.java
index 3aa197002..2c36d022b 100644
--- a/application/src/main/java/run/halo/app/core/extension/reconciler/PostReconciler.java
+++ b/application/src/main/java/run/halo/app/core/extension/reconciler/PostReconciler.java
@@ -15,6 +15,7 @@ import com.google.common.hash.Hashing;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
@@ -88,7 +89,7 @@ public class PostReconciler implements Reconciler<Reconciler.Request> {
 
     @Override
     public Result reconcile(Request request) {
-        var events = new HashSet<ApplicationEvent>();
+        var events = new LinkedHashSet<ApplicationEvent>();
         client.fetch(Post.class, request.name())
             .ifPresent(post -> {
                 if (ExtensionOperator.isDeleted(post)) {
@@ -104,7 +105,7 @@ public class PostReconciler implements Reconciler<Reconciler.Request> {
                 }
                 addFinalizers(post.getMetadata(), Set.of(FINALIZER_NAME));
 
-                populateLabels(post);
+                populateLabels(post, events);
 
                 schedulePublishIfNecessary(post);
 
@@ -195,7 +196,7 @@ public class PostReconciler implements Reconciler<Reconciler.Request> {
         return Result.doNotRetry();
     }
 
-    private void populateLabels(Post post) {
+    private void populateLabels(Post post, Set<ApplicationEvent> events) {
         var labels = nullSafeLabels(post);
         labels.put(Post.DELETED_LABEL, String.valueOf(isTrue(post.getSpec().getDeleted())));
 
@@ -203,8 +204,7 @@ public class PostReconciler implements Reconciler<Reconciler.Request> {
         var oldVisible = VisibleEnum.from(labels.get(Post.VISIBLE_LABEL));
         if (!Objects.equals(oldVisible, expectVisible)) {
             var postName = post.getMetadata().getName();
-            eventPublisher.publishEvent(
-                new PostVisibleChangedEvent(postName, oldVisible, expectVisible));
+            events.add(new PostVisibleChangedEvent(this, postName, oldVisible, expectVisible));
         }
         labels.put(Post.VISIBLE_LABEL, expectVisible.toString());
 
diff --git a/application/src/main/java/run/halo/app/event/post/PostDeletedEvent.java b/application/src/main/java/run/halo/app/event/post/PostDeletedEvent.java
deleted file mode 100644
index 37e9c9755..000000000
--- a/application/src/main/java/run/halo/app/event/post/PostDeletedEvent.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package run.halo.app.event.post;
-
-import lombok.Getter;
-import org.springframework.context.ApplicationEvent;
-import run.halo.app.core.extension.content.Post;
-
-@Getter
-public class PostDeletedEvent extends ApplicationEvent implements PostEvent {
-
-    private final Post post;
-
-    public PostDeletedEvent(Object source, Post post) {
-        super(source);
-        this.post = post;
-    }
-
-    @Override
-    public String getName() {
-        return post.getMetadata().getName();
-    }
-}
diff --git a/application/src/main/java/run/halo/app/event/post/PostEvent.java b/application/src/main/java/run/halo/app/event/post/PostEvent.java
deleted file mode 100644
index 62a6071cd..000000000
--- a/application/src/main/java/run/halo/app/event/post/PostEvent.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package run.halo.app.event.post;
-
-public interface PostEvent {
-
-    String getName();
-
-}
diff --git a/application/src/main/java/run/halo/app/event/post/PostPublishedEvent.java b/application/src/main/java/run/halo/app/event/post/PostPublishedEvent.java
deleted file mode 100644
index f1fa9997b..000000000
--- a/application/src/main/java/run/halo/app/event/post/PostPublishedEvent.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package run.halo.app.event.post;
-
-import org.springframework.context.ApplicationEvent;
-import run.halo.app.plugin.SharedEvent;
-
-@SharedEvent
-public class PostPublishedEvent extends ApplicationEvent implements PostEvent {
-
-    private final String postName;
-
-    public PostPublishedEvent(Object source, String postName) {
-        super(source);
-        this.postName = postName;
-    }
-
-    @Override
-    public String getName() {
-        return postName;
-    }
-
-}
diff --git a/application/src/main/java/run/halo/app/event/post/PostUnpublishedEvent.java b/application/src/main/java/run/halo/app/event/post/PostUnpublishedEvent.java
deleted file mode 100644
index b674658ea..000000000
--- a/application/src/main/java/run/halo/app/event/post/PostUnpublishedEvent.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package run.halo.app.event.post;
-
-import org.springframework.context.ApplicationEvent;
-
-public class PostUnpublishedEvent extends ApplicationEvent implements PostEvent {
-
-    private final String postName;
-
-    public PostUnpublishedEvent(Object source, String postName) {
-        super(source);
-        this.postName = postName;
-    }
-
-    @Override
-    public String getName() {
-        return postName;
-    }
-
-}
diff --git a/application/src/main/java/run/halo/app/event/post/PostUpdatedEvent.java b/application/src/main/java/run/halo/app/event/post/PostUpdatedEvent.java
deleted file mode 100644
index a17d8677c..000000000
--- a/application/src/main/java/run/halo/app/event/post/PostUpdatedEvent.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package run.halo.app.event.post;
-
-import org.springframework.context.ApplicationEvent;
-
-public class PostUpdatedEvent extends ApplicationEvent implements PostEvent {
-
-    private final String postName;
-
-    public PostUpdatedEvent(Object source, String postName) {
-        super(source);
-        this.postName = postName;
-    }
-
-    @Override
-    public String getName() {
-        return postName;
-    }
-}
diff --git a/application/src/main/java/run/halo/app/event/post/PostVisibleChangedEvent.java b/application/src/main/java/run/halo/app/event/post/PostVisibleChangedEvent.java
deleted file mode 100644
index 6e2d1c2fb..000000000
--- a/application/src/main/java/run/halo/app/event/post/PostVisibleChangedEvent.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package run.halo.app.event.post;
-
-import lombok.Data;
-import org.springframework.lang.Nullable;
-import run.halo.app.core.extension.content.Post;
-
-@Data
-public class PostVisibleChangedEvent implements PostEvent {
-
-    private final String postName;
-
-    @Nullable
-    private final Post.VisibleEnum oldVisible;
-
-    private final Post.VisibleEnum newVisible;
-
-    public PostVisibleChangedEvent(String postName, Post.VisibleEnum oldVisible,
-        Post.VisibleEnum newVisible) {
-        this.postName = postName;
-        this.oldVisible = oldVisible;
-        this.newVisible = newVisible;
-    }
-
-    @Override
-    public String getName() {
-        return postName;
-    }
-
-}