diff --git a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/LogcatActivity.kt b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/LogcatActivity.kt
index 872f32ea..d56395b8 100644
--- a/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/LogcatActivity.kt
+++ b/V2rayNG/app/src/main/kotlin/com/v2ray/ang/ui/LogcatActivity.kt
@@ -1,6 +1,8 @@
 package com.v2ray.ang.ui
 
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.text.method.ScrollingMovementMethod
 import android.view.Menu
 import android.view.MenuItem
@@ -24,15 +26,22 @@ class LogcatActivity : BaseActivity() {
         title = getString(R.string.title_logcat)
 
         supportActionBar?.setDisplayHomeAsUpEnabled(true)
-        logcat()
+        logcat(false)
     }
 
-    private fun logcat() {
+    private fun logcat(shouldFlushLog: Boolean) {
 
         try {
             pb_waiting.visibility = View.VISIBLE
 
             doAsync {
+                if (shouldFlushLog) {
+                    val lst = LinkedHashSet<String>()
+                    lst.add("logcat")
+                    lst.add("-c")
+                    val process = Runtime.getRuntime().exec(lst.toTypedArray())
+                    process.waitFor()
+                }
                 val lst = LinkedHashSet<String>()
                 lst.add("logcat")
                 lst.add("-d")
@@ -49,9 +58,11 @@ class LogcatActivity : BaseActivity() {
                     tv_logcat.text = allText
                     tv_logcat.movementMethod = ScrollingMovementMethod()
                     pb_waiting.visibility = View.GONE
+                    Handler(Looper.getMainLooper()).post { sv_logcat.fullScroll(View.FOCUS_DOWN) }
                 }
             }
         } catch (e: IOException) {
+            e.printStackTrace()
         }
     }
 
@@ -66,7 +77,10 @@ class LogcatActivity : BaseActivity() {
             toast(R.string.toast_success)
             true
         }
-
+        R.id.delete -> {
+            logcat(true)
+            true
+        }
         else -> super.onOptionsItemSelected(item)
     }
 }
diff --git a/V2rayNG/app/src/main/res/menu/menu_logcat.xml b/V2rayNG/app/src/main/res/menu/menu_logcat.xml
index cabe6c2e..42042a67 100644
--- a/V2rayNG/app/src/main/res/menu/menu_logcat.xml
+++ b/V2rayNG/app/src/main/res/menu/menu_logcat.xml
@@ -6,4 +6,9 @@
         android:icon="@drawable/ic_copy_white"
         android:title="@string/logcat_copy"
         app:showAsAction="always" />
+    <item
+        android:id="@+id/delete"
+        android:icon="@drawable/ic_delete_white_24dp"
+        android:title="@string/logcat_delete"
+        app:showAsAction="ifRoom" />
 </menu>
\ No newline at end of file
diff --git a/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml b/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml
index 36fc90aa..535748f3 100644
--- a/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml
+++ b/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml
@@ -135,6 +135,7 @@
 
     <string name="title_logcat">Logcat</string>
     <string name="logcat_copy">复制</string>
+    <string name="logcat_delete">删除</string>
     <string name="title_export_all">导出全部配置至剪贴板</string>
     <string name="title_sub_setting">订阅设置</string>
     <string name="sub_setting_remarks">备注</string>
diff --git a/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml b/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml
index 09b6ba66..b80cd7e8 100644
--- a/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml
+++ b/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml
@@ -137,6 +137,7 @@
 
     <string name="title_logcat">Logcat</string>
     <string name="logcat_copy">複製</string>
+    <string name="logcat_delete">刪除</string>
     <string name="title_export_all">匯出全部配置至剪貼簿</string>
     <string name="title_sub_setting">訂閱設定</string>
     <string name="sub_setting_remarks">備註</string>
diff --git a/V2rayNG/app/src/main/res/values/strings.xml b/V2rayNG/app/src/main/res/values/strings.xml
index 29c03bf9..6865872a 100644
--- a/V2rayNG/app/src/main/res/values/strings.xml
+++ b/V2rayNG/app/src/main/res/values/strings.xml
@@ -136,6 +136,7 @@
 
     <string name="title_logcat">Logcat</string>
     <string name="logcat_copy">Copy</string>
+    <string name="logcat_delete">Delete</string>
     <string name="title_export_all">Export all config to clipboard</string>
     <string name="title_sub_setting">Subscription setting</string>
     <string name="sub_setting_remarks">remarks</string>