diff --git a/app/src/main/java/com/gh/common/constant/Constants.java b/app/src/main/java/com/gh/common/constant/Constants.java
index 7e735eb0ca..fddda3edae 100644
--- a/app/src/main/java/com/gh/common/constant/Constants.java
+++ b/app/src/main/java/com/gh/common/constant/Constants.java
@@ -185,6 +185,9 @@ public class Constants {
     // 悬浮图标Y值
     public static final String SP_TASK_FLOAT_LAST_Y = "task_float_last_y";
 
+    // 日程ID
+    public static final String SP_SCHEDULE_ID = "schedule_id";
+
     //手机号码匹配规则
     public static final String REGEX_MOBILE = "^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$";
     public static final String REGEX_ACCOUNT = "^[a-zA-Z_]\\w{5,17}$";
diff --git a/app/src/main/java/com/gh/common/util/CalendarHelper.kt b/app/src/main/java/com/gh/common/util/CalendarHelper.kt
index fe67dd434d..fca7644395 100644
--- a/app/src/main/java/com/gh/common/util/CalendarHelper.kt
+++ b/app/src/main/java/com/gh/common/util/CalendarHelper.kt
@@ -7,6 +7,7 @@ import android.database.Cursor
 import android.net.Uri
 import android.provider.CalendarContract.*
 import android.text.TextUtils
+import com.gh.common.constant.Constants
 import com.gh.gamecenter.BuildConfig
 import com.gh.gamecenter.R
 import java.util.*
@@ -117,10 +118,22 @@ object CalendarHelper {
                 put(Events.CALENDAR_ID, calendarId)
                 put(Events.EVENT_TIMEZONE, TimeZone.getDefault().id)
             }
+
+            // 检测是否存在已保存的日程ID，有则更新
+            val scheduleId = SPUtils.getLong(Constants.SP_SCHEDULE_ID)
+            if (scheduleId != 0L) {
+                val updateUri = ContentUris.withAppendedId(CALENDAR_EVENT_URL, scheduleId)
+                val rows = context.contentResolver.update(updateUri, eventValues, null, null)
+                if (rows != -1) return true
+            }
+
             val eUri: Uri? = context.contentResolver.insert(CALENDAR_EVENT_URL, eventValues)
             val eventId = eUri?.let { ContentUris.parseId(it) }
             if (eventId == 0L) { // 插入失败
                 return false
+            } else {
+                // 保存日程ID
+                SPUtils.setLong(Constants.SP_SCHEDULE_ID, eventId ?: 0L)
             }
             /** 插入提醒 - 依赖插入日程成功  */
             val reminderValues = ContentValues()
@@ -141,6 +154,17 @@ object CalendarHelper {
 
     fun deleteCalendarEvent(context: Context,
                             title: String): Boolean {
+
+        // 检测是否存在已保存的日程ID，有则根据该ID删除
+        val scheduleId = SPUtils.getLong(Constants.SP_SCHEDULE_ID)
+        if (scheduleId != 0L) {
+            val deleteUri = ContentUris.withAppendedId(CALENDAR_EVENT_URL, scheduleId)
+            val rows = context.contentResolver.delete(deleteUri, null, null)
+            if (rows != -1) {
+                SPUtils.setLong(Constants.SP_SCHEDULE_ID, 0L)
+                return true
+            }
+        }
         val eventCursor = context.contentResolver.query(CALENDAR_EVENT_URL,
                 null, null, null, null)
         eventCursor?.use {
@@ -154,6 +178,7 @@ object CalendarHelper {
                                 .getColumnIndex(Calendars._ID)) // 取得id
                         val deleteUri = ContentUris.withAppendedId(CALENDAR_EVENT_URL, id.toLong())
                         val rows = context.contentResolver.delete(deleteUri, null, null)
+                        SPUtils.setLong(Constants.SP_SCHEDULE_ID, 0L)
                         return rows != -1
                     }
                     it.moveToNext()