diff --git a/src/main/java/cc/ryanc/halo/repository/CategoryRepository.java b/src/main/java/cc/ryanc/halo/repository/CategoryRepository.java
index 87d4ca13a..1086d18ac 100644
--- a/src/main/java/cc/ryanc/halo/repository/CategoryRepository.java
+++ b/src/main/java/cc/ryanc/halo/repository/CategoryRepository.java
@@ -4,6 +4,8 @@ import cc.ryanc.halo.model.entity.Category;
 import cc.ryanc.halo.repository.base.BaseRepository;
 import org.springframework.lang.NonNull;
 
+import java.util.Optional;
+
 /**
  * Category repository.
  *
@@ -26,4 +28,12 @@ public interface CategoryRepository extends BaseRepository<Category, Integer> {
      * @return the count
      */
     long countById(@NonNull Integer id);
+
+    /**
+     * Get category by slug name
+     *
+     * @param slugName slug name
+     * @return Optional of Category
+     */
+    Optional<Category> getBySlugName(@NonNull String slugName);
 }
diff --git a/src/main/java/cc/ryanc/halo/repository/TagRepository.java b/src/main/java/cc/ryanc/halo/repository/TagRepository.java
index 11e1881e5..8ed1e14bd 100644
--- a/src/main/java/cc/ryanc/halo/repository/TagRepository.java
+++ b/src/main/java/cc/ryanc/halo/repository/TagRepository.java
@@ -4,6 +4,8 @@ import cc.ryanc.halo.model.entity.Tag;
 import cc.ryanc.halo.repository.base.BaseRepository;
 import org.springframework.lang.NonNull;
 
+import java.util.Optional;
+
 /**
  * Tag repository.
  *
@@ -19,4 +21,12 @@ public interface TagRepository extends BaseRepository<Tag, Integer> {
      * @return tag count
      */
     long countByNameOrSlugName(@NonNull String name, @NonNull String slugName);
+
+    /**
+     * Get tag by slug name
+     *
+     * @param slugName slug name
+     * @return Tag
+     */
+    Optional<Tag> getBySlugName(@NonNull String slugName);
 }
diff --git a/src/main/java/cc/ryanc/halo/service/CategoryService.java b/src/main/java/cc/ryanc/halo/service/CategoryService.java
index 528cca9fd..4ef4f8e10 100755
--- a/src/main/java/cc/ryanc/halo/service/CategoryService.java
+++ b/src/main/java/cc/ryanc/halo/service/CategoryService.java
@@ -31,4 +31,12 @@ public interface CategoryService extends CrudService<Category, Integer> {
      */
     @NonNull
     List<CategoryVO> listAsTree(@NonNull Sort sort);
+
+    /**
+     * Get category by slug name
+     *
+     * @param slugName slug name
+     * @return Category
+     */
+    Category getBySlugName(@NonNull String slugName);
 }
diff --git a/src/main/java/cc/ryanc/halo/service/GalleryService.java b/src/main/java/cc/ryanc/halo/service/GalleryService.java
index ba887f7dc..207c128e5 100644
--- a/src/main/java/cc/ryanc/halo/service/GalleryService.java
+++ b/src/main/java/cc/ryanc/halo/service/GalleryService.java
@@ -1,7 +1,6 @@
 package cc.ryanc.halo.service;
 
 import cc.ryanc.halo.model.dto.GalleryOutputDTO;
-import cc.ryanc.halo.model.dto.LinkOutputDTO;
 import cc.ryanc.halo.model.entity.Gallery;
 import cc.ryanc.halo.service.base.CrudService;
 import org.springframework.data.domain.Sort;
diff --git a/src/main/java/cc/ryanc/halo/service/TagService.java b/src/main/java/cc/ryanc/halo/service/TagService.java
index 1cc7fe97a..b46c49482 100644
--- a/src/main/java/cc/ryanc/halo/service/TagService.java
+++ b/src/main/java/cc/ryanc/halo/service/TagService.java
@@ -32,4 +32,11 @@ public interface TagService extends CrudService<Tag, Integer> {
     @NonNull
     List<TagOutputDTO> listDtos(@NonNull Sort sort);
 
+    /**
+     * Get tag by slug name
+     *
+     * @param slugName slug name
+     * @return Tag
+     */
+    Tag getBySlugName(@NonNull String slugName);
 }
diff --git a/src/main/java/cc/ryanc/halo/service/UserService.java b/src/main/java/cc/ryanc/halo/service/UserService.java
index 7cf625e03..3f96cb770 100755
--- a/src/main/java/cc/ryanc/halo/service/UserService.java
+++ b/src/main/java/cc/ryanc/halo/service/UserService.java
@@ -61,6 +61,7 @@ public interface UserService extends CrudService<User, Integer> {
      * @return user info
      * @throws NotFoundException throws when the username does not exist
      */
+    @NonNull
     User getByEmailOfNonNull(@NonNull String email);
 
     /**
diff --git a/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java b/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java
index ac4d3f130..db68287eb 100644
--- a/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java
+++ b/src/main/java/cc/ryanc/halo/service/impl/CategoryServiceImpl.java
@@ -147,4 +147,15 @@ public class CategoryServiceImpl extends AbstractCrudService<Category, Integer>
 
         return topCategory;
     }
+
+    /**
+     * Get category by slug name
+     *
+     * @param slugName slug name
+     * @return Category
+     */
+    @Override
+    public Category getBySlugName(String slugName) {
+        return categoryRepository.getBySlugName(slugName).orElseThrow(() -> new NotFoundException("The Category does not exist").setErrorData(slugName));
+    }
 }
diff --git a/src/main/java/cc/ryanc/halo/service/impl/PostServiceImpl.java b/src/main/java/cc/ryanc/halo/service/impl/PostServiceImpl.java
index 05c044c11..69a268d3b 100644
--- a/src/main/java/cc/ryanc/halo/service/impl/PostServiceImpl.java
+++ b/src/main/java/cc/ryanc/halo/service/impl/PostServiceImpl.java
@@ -8,16 +8,13 @@ import cc.ryanc.halo.model.dto.post.PostSimpleOutputDTO;
 import cc.ryanc.halo.model.entity.*;
 import cc.ryanc.halo.model.enums.PostStatus;
 import cc.ryanc.halo.model.enums.PostType;
-import cc.ryanc.halo.model.params.PostParam;
 import cc.ryanc.halo.model.vo.PostListVO;
 import cc.ryanc.halo.repository.PostRepository;
 import cc.ryanc.halo.service.*;
 import cc.ryanc.halo.service.base.AbstractCrudService;
-import cc.ryanc.halo.utils.HaloUtils;
 import cc.ryanc.halo.utils.MarkdownUtils;
 import cc.ryanc.halo.utils.ServiceUtils;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.lang3.StringUtils;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
diff --git a/src/main/java/cc/ryanc/halo/service/impl/TagServiceImpl.java b/src/main/java/cc/ryanc/halo/service/impl/TagServiceImpl.java
index 05c14bed3..02f890267 100644
--- a/src/main/java/cc/ryanc/halo/service/impl/TagServiceImpl.java
+++ b/src/main/java/cc/ryanc/halo/service/impl/TagServiceImpl.java
@@ -1,6 +1,7 @@
 package cc.ryanc.halo.service.impl;
 
 import cc.ryanc.halo.exception.AlreadyExistsException;
+import cc.ryanc.halo.exception.NotFoundException;
 import cc.ryanc.halo.model.dto.TagOutputDTO;
 import cc.ryanc.halo.model.entity.Tag;
 import cc.ryanc.halo.repository.TagRepository;
@@ -63,4 +64,15 @@ public class TagServiceImpl extends AbstractCrudService<Tag, Integer> implements
         // Get tag name
         return super.create(tag);
     }
+
+    /**
+     * Get tag by slug name
+     *
+     * @param slugName slug name
+     * @return Tag
+     */
+    @Override
+    public Tag getBySlugName(String slugName) {
+        return tagRepository.getBySlugName(slugName).orElseThrow(() -> new NotFoundException("The tag does not exist").setErrorData(slugName));
+    }
 }
diff --git a/src/main/java/cc/ryanc/halo/web/controller/admin/api/TagController.java b/src/main/java/cc/ryanc/halo/web/controller/admin/api/TagController.java
index 1b5adc2f4..75f402955 100644
--- a/src/main/java/cc/ryanc/halo/web/controller/admin/api/TagController.java
+++ b/src/main/java/cc/ryanc/halo/web/controller/admin/api/TagController.java
@@ -13,7 +13,6 @@ import org.springframework.web.bind.annotation.*;
 
 import javax.validation.Valid;
 import java.util.List;
-import java.util.stream.Collectors;
 
 /**
  * Tag controller.
diff --git a/src/main/java/cc/ryanc/halo/web/controller/content/ContentTagController.java b/src/main/java/cc/ryanc/halo/web/controller/content/ContentTagController.java
new file mode 100644
index 000000000..f7a28edb5
--- /dev/null
+++ b/src/main/java/cc/ryanc/halo/web/controller/content/ContentTagController.java
@@ -0,0 +1,98 @@
+package cc.ryanc.halo.web.controller.content;
+
+import cc.ryanc.halo.model.entity.Tag;
+import cc.ryanc.halo.model.enums.BlogProperties;
+import cc.ryanc.halo.model.vo.PostListVO;
+import cc.ryanc.halo.service.PostService;
+import cc.ryanc.halo.service.TagService;
+import cc.ryanc.halo.web.controller.content.base.BaseContentController;
+import cn.hutool.core.util.StrUtil;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.web.SortDefault;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import static cc.ryanc.halo.model.support.HaloConst.OPTIONS;
+import static org.springframework.data.domain.Sort.Direction.DESC;
+
+/**
+ * Tag Controller
+ *
+ * @author : RYAN0UP
+ * @date : 2019-03-21
+ */
+@Controller
+@RequestMapping(value = "/tags")
+public class ContentTagController extends BaseContentController {
+
+    private TagService tagService;
+
+    private PostService postService;
+
+    public ContentTagController(TagService tagService, PostService postService) {
+        this.tagService = tagService;
+        this.postService = postService;
+    }
+
+    /**
+     * All of tags
+     *
+     * @return template path: themes/{theme}/tags
+     */
+    @GetMapping
+    public String tags() {
+        return this.render("tags");
+    }
+
+    /**
+     * List tags by tag slug
+     *
+     * @param model    model
+     * @param slugName slug name
+     * @return template path: themes/{theme}/tag
+     */
+    @GetMapping(value = "{slugName}")
+    public String tags(Model model,
+                       @PathVariable("slugName") String slugName) {
+        return this.tags(model, slugName, 1, Sort.by(DESC, "postDate"));
+    }
+
+    /**
+     * List tags by tag slug
+     *
+     * @param model    model
+     * @param slugName slug name
+     * @param page     current page
+     * @return template path: themes/{theme}/tag
+     */
+    @GetMapping(value = "{slugName}/page/{page}")
+    public String tags(Model model,
+                       @PathVariable("slugName") String slugName,
+                       @PathVariable("page") Integer page,
+                       @SortDefault(sort = "postDate", direction = DESC) Sort sort) {
+        final Tag tag = tagService.getBySlugName(slugName);
+        if (null == tag) {
+            return this.renderNotFound();
+        }
+        int size = 10;
+        if (StrUtil.isNotBlank(OPTIONS.get(BlogProperties.INDEX_POSTS.getValue()))) {
+            size = Integer.parseInt(OPTIONS.get(BlogProperties.INDEX_POSTS.getValue()));
+        }
+        final Pageable pageable = PageRequest.of(page - 1, size, sort);
+
+        // TODO get posts by tag
+        final Page<PostListVO> posts;
+        //final int[] rainbow = PageUtil.rainbow(page, posts.getTotalPages(), 3);
+//        model.addAttribute("is_tags", true);
+//        model.addAttribute("posts", posts);
+//        model.addAttribute("rainbow", rainbow);
+//        model.addAttribute("tag", tag);
+        return this.render("tag");
+    }
+}