diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt
index dfadae4fe..637273e35 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt
@@ -21,6 +21,7 @@ import kotlinx.serialization.MissingFieldException
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonConfiguration
 import kotlinx.serialization.json.int
+import kotlinx.serialization.json.long
 import net.mamoe.mirai.LowLevelAPI
 import net.mamoe.mirai.contact.*
 import net.mamoe.mirai.data.*
@@ -600,9 +601,9 @@ internal class GroupImpl(
 
 
     @MiraiExperimentalAPI
-    override suspend fun sendAnnouncement(announcement: GroupAnnouncement) {
+    override suspend fun sendAnnouncement(announcement: GroupAnnouncement): String {
         val json = Json(JsonConfiguration.Stable)
-        bot.network.launch {
+        val rep = bot.network.async {
             HttpClient().post<String> {
                 url("https://web.qun.qq.com/cgi-bin/announce/add_qun_notice")
                 body = MultiPartFormDataContent(formData {
@@ -610,7 +611,13 @@ internal class GroupImpl(
                     append("bkn", getBkn())
                     append("text", announcement.msg.text)
                     append("pinned", announcement.pinned)
-                    append("settings", json.stringify(GroupAnnouncementSettings.serializer(), announcement.settings?:GroupAnnouncementSettings()))
+                    append(
+                        "settings",
+                        json.stringify(
+                            GroupAnnouncementSettings.serializer(),
+                            announcement.settings ?: GroupAnnouncementSettings()
+                        )
+                    )
                     append("format", "json")
                 })
                 headers {
@@ -622,13 +629,41 @@ internal class GroupImpl(
                                 " p_skey=${bot.client.wLoginSigInfo.psKeyMap["qun.qq.com"]?.data?.encodeToString()}; "
                     )
                 }
-            }.also {
-                val jsonObj  = json.parseJson(it)
-                if (jsonObj.jsonObject["ec"]?.int ?:1  != 0){
-                    throw IllegalStateException("Send Announcement fail group:$id msg:${jsonObj.jsonObject["em"]} content:${announcement.msg.text}")
+            }
+        }
+        val jsonObj = json.parseJson(rep.await())
+        return jsonObj.jsonObject["new_fid"]?.primitive?.content
+            ?: throw throw IllegalStateException("Send Announcement fail group:$id msg:${jsonObj.jsonObject["em"]} content:${announcement.msg.text}")
+    }
+
+    @MiraiExperimentalAPI
+    override suspend fun deleteAnnouncement(fid: String) {
+        val json = Json(JsonConfiguration.Stable)
+        val rep = bot.network.async {
+            HttpClient().post<String> {
+                url("https://web.qun.qq.com/cgi-bin/announce/del_feed")
+                body = MultiPartFormDataContent(formData {
+                    append("qid", id)
+                    append("bkn", getBkn())
+                    append("fid", fid)
+                    append("format", "json")
+                })
+                headers {
+                    append(
+                        "cookie",
+                        "uin=o${bot.selfQQ.id};" +
+                                " skey=${bot.client.wLoginSigInfo.sKey.data.encodeToString()};" +
+                                " p_uin=o${bot.selfQQ.id};" +
+                                " p_skey=${bot.client.wLoginSigInfo.psKeyMap["qun.qq.com"]?.data?.encodeToString()}; "
+                    )
                 }
             }
         }
+        val data = rep.await()
+        val jsonObj  = json.parseJson(data)
+        if (jsonObj.jsonObject["ec"]?.int ?: 1 != 0){
+            throw throw IllegalStateException("delete Announcement fail group:$id msg:${jsonObj.jsonObject["em"]} fid:$fid")
+        }
     }
 
     @OptIn(MiraiExperimentalAPI::class)
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/contact/Group.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/contact/Group.kt
index dc6005238..ff7c690de 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/contact/Group.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/contact/Group.kt
@@ -158,14 +158,23 @@ expect abstract class Group() : Contact, CoroutineScope {
      *
      * */
     @MiraiExperimentalAPI
-    abstract suspend fun getAnnouncements(page: Int = 1, amount: Int = 10):GroupAnnouncementList?
+    abstract suspend fun getAnnouncements(page: Int = 1, amount: Int = 10): GroupAnnouncementList?
 
     /**
      * 发送群公告
      *
      * */
     @MiraiExperimentalAPI
-    abstract suspend fun sendAnnouncement(announcement: GroupAnnouncement)
+    abstract suspend fun sendAnnouncement(announcement: GroupAnnouncement): String
+
+
+    /**
+     * 删除群公告
+     * fid可以通过发送公告的返回值得到或者获取列表得到
+     * */
+
+    @MiraiExperimentalAPI
+    abstract suspend fun deleteAnnouncement(fid: String)
 
     /**
      * 让机器人退出这个群. 机器人必须为非群主才能退出. 否则将会失败
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/data/GroupAnnouncement.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/data/GroupAnnouncement.kt
index 2dfadf8c5..ac9cc6311 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/data/GroupAnnouncement.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/data/GroupAnnouncement.kt
@@ -26,7 +26,8 @@ data class GroupAnnouncement(
     @SerialName("pubt") val time: Long = 0,
     @SerialName("read_num") val readNum: Int = 0,
     @SerialName("is_read") val isRead: Int = 0,
-    val pinned: Int = 0
+    val pinned: Int = 0,
+    val fid:String? = null      //公告的id
 )
 
 @Serializable
diff --git a/mirai-core/src/jvmMain/kotlin/net/mamoe/mirai/contact/Group.kt b/mirai-core/src/jvmMain/kotlin/net/mamoe/mirai/contact/Group.kt
index 2f065bab5..8efa42be9 100644
--- a/mirai-core/src/jvmMain/kotlin/net/mamoe/mirai/contact/Group.kt
+++ b/mirai-core/src/jvmMain/kotlin/net/mamoe/mirai/contact/Group.kt
@@ -156,12 +156,18 @@ actual abstract class Group : Contact(), CoroutineScope {
     @MiraiExperimentalAPI
     actual suspend abstract fun getAnnouncements(page: Int, amount: Int): GroupAnnouncementList?
 
+    /**
+     * 删除群公告
+     * fid可以通过发送公告的返回值得到或者获取列表得到
+     * */
+    @MiraiExperimentalAPI
+    actual abstract suspend fun deleteAnnouncement(fid: String)
 
     /**
     * 发送群公告
     * */
     @MiraiExperimentalAPI
-    actual suspend abstract fun sendAnnouncement(announcement: GroupAnnouncement)
+    actual suspend abstract fun sendAnnouncement(announcement: GroupAnnouncement):String
 
     /**
      * 检查此 id 的群成员是否存在