diff --git a/install_trojan.sh b/install_trojan.sh
index f1f641a..8b62626 100755
--- a/install_trojan.sh
+++ b/install_trojan.sh
@@ -1 +1,33 @@
 #!/usr/bin/env bash
+
+checkSystem(){
+
+	if [[ ! -z `find /etc -name "redhat-release"` ]] || [[ ! -z `cat /proc/version | grep -i "centos" | grep -v grep ` ]] || [[ ! -z `cat /proc/version | grep -i "red hat" | grep -v grep ` ]] || [[ ! -z `cat /proc/version | grep -i "redhat" | grep -v grep ` ]]
+	then
+		release="centos"
+		installType='yum -y install'
+		removeType='yum -y remove'
+		upgrade="yum update -y"
+	elif [[ ! -z `cat /etc/issue | grep -i "debian" | grep -v grep` ]] || [[ ! -z `cat /proc/version | grep -i "debian" | grep -v grep` ]]
+    then
+		release="debian"
+		installType='apt -y install'
+		upgrade="apt update -y"
+		removeType='apt -y autoremove'
+	elif [[ ! -z `cat /etc/issue | grep -i "ubuntu" | grep -v grep` ]] || [[ ! -z `cat /proc/version | grep -i "ubuntu" | grep -v grep` ]]
+	then
+		release="ubuntu"
+		installType='apt -y install'
+		upgrade="apt update -y"
+		removeType='apt --purge remove'
+
+    fi
+    if [[ -z ${release} ]]
+    then
+        echoContent red "本脚本不支持此系统，请将下方日志反馈给开发者"
+        cat /etc/issue
+        cat /proc/version
+        exit 0;
+    fi
+}
+checkSystem
\ No newline at end of file