diff --git a/binary-compatibility-validator/android/api/binary-compatibility-validator-android.api b/binary-compatibility-validator/android/api/binary-compatibility-validator-android.api
index 34f260665..6eb48ace9 100644
--- a/binary-compatibility-validator/android/api/binary-compatibility-validator-android.api
+++ b/binary-compatibility-validator/android/api/binary-compatibility-validator-android.api
@@ -572,12 +572,30 @@ public abstract interface class net/mamoe/mirai/contact/VoiceSupported : net/mam
 }
 
 public abstract interface class net/mamoe/mirai/contact/announcement/Announcement {
+	public static final field Companion Lnet/mamoe/mirai/contact/announcement/Announcement$Companion;
 	public abstract fun getContent ()Ljava/lang/String;
 	public abstract fun getParameters ()Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
 	public fun publishTo (Lnet/mamoe/mirai/contact/Group;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
 	public fun publishTo (Lnet/mamoe/mirai/contact/Group;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
 }
 
+public final class net/mamoe/mirai/contact/announcement/Announcement$Companion {
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public static synthetic fun publishAnnouncement$default (Lnet/mamoe/mirai/contact/announcement/Announcement$Companion;Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;ILjava/lang/Object;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static synthetic fun publishAnnouncement$default (Lnet/mamoe/mirai/contact/announcement/Announcement$Companion;Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;Lkotlin/coroutines/Continuation;ILjava/lang/Object;)Ljava/lang/Object;
+}
+
 public final class net/mamoe/mirai/contact/announcement/AnnouncementImage {
 	public static final field Companion Lnet/mamoe/mirai/contact/announcement/AnnouncementImage$Companion;
 	public static final field SERIAL_NAME Ljava/lang/String;
diff --git a/binary-compatibility-validator/api/binary-compatibility-validator.api b/binary-compatibility-validator/api/binary-compatibility-validator.api
index bf0902afe..7218604a6 100644
--- a/binary-compatibility-validator/api/binary-compatibility-validator.api
+++ b/binary-compatibility-validator/api/binary-compatibility-validator.api
@@ -572,12 +572,30 @@ public abstract interface class net/mamoe/mirai/contact/VoiceSupported : net/mam
 }
 
 public abstract interface class net/mamoe/mirai/contact/announcement/Announcement {
+	public static final field Companion Lnet/mamoe/mirai/contact/announcement/Announcement$Companion;
 	public abstract fun getContent ()Ljava/lang/String;
 	public abstract fun getParameters ()Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
 	public fun publishTo (Lnet/mamoe/mirai/contact/Group;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
 	public fun publishTo (Lnet/mamoe/mirai/contact/Group;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
 }
 
+public final class net/mamoe/mirai/contact/announcement/Announcement$Companion {
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public final fun publishAnnouncement (Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
+	public static synthetic fun publishAnnouncement$default (Lnet/mamoe/mirai/contact/announcement/Announcement$Companion;Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;ILjava/lang/Object;)Lnet/mamoe/mirai/contact/announcement/OnlineAnnouncement;
+	public static synthetic fun publishAnnouncement$default (Lnet/mamoe/mirai/contact/announcement/Announcement$Companion;Lnet/mamoe/mirai/contact/Group;Ljava/lang/String;Lnet/mamoe/mirai/contact/announcement/AnnouncementParameters;Lkotlin/coroutines/Continuation;ILjava/lang/Object;)Ljava/lang/Object;
+}
+
 public final class net/mamoe/mirai/contact/announcement/AnnouncementImage {
 	public static final field Companion Lnet/mamoe/mirai/contact/announcement/AnnouncementImage$Companion;
 	public static final field SERIAL_NAME Ljava/lang/String;
diff --git a/mirai-core-api/src/commonMain/kotlin/contact/announcement/Announcement.kt b/mirai-core-api/src/commonMain/kotlin/contact/announcement/Announcement.kt
index d1764935b..82eab71ab 100644
--- a/mirai-core-api/src/commonMain/kotlin/contact/announcement/Announcement.kt
+++ b/mirai-core-api/src/commonMain/kotlin/contact/announcement/Announcement.kt
@@ -15,6 +15,9 @@ package net.mamoe.mirai.contact.announcement
 import net.mamoe.kjbb.JvmBlockingBridge
 import net.mamoe.mirai.contact.Group
 import net.mamoe.mirai.contact.PermissionDeniedException
+import net.mamoe.mirai.contact.announcement.Announcement.Companion.publishAnnouncement
+import kotlin.contracts.InvocationKind
+import kotlin.contracts.contract
 
 
 /**
@@ -35,6 +38,8 @@ import net.mamoe.mirai.contact.PermissionDeniedException
  *
  * 在构造时可提供可选的 [AnnouncementParameters] 来设置一些附加属性.
  *
+ * 也可以使用 [Announcement.publishAnnouncement] 扩展快捷创建并发送公告.
+ *
  * ### 转发获取的公告到其他群
  *
  * 通过一个群的 [Announcements] 获取到 [OnlineAnnouncement], 然后调用 [OnlineAnnouncement.publishTo] 到另一个群即可.
@@ -70,6 +75,50 @@ public sealed interface Announcement {
      * @see Announcements.publish
      */
     public suspend fun publishTo(group: Group): OnlineAnnouncement = group.announcements.publish(this)
+
+    public companion object {
+        /**
+         * 在该群发布群公告并获得 [OnlineAnnouncement]. 发布公告后群内将会出现 "有新公告" 系统提示.
+         *
+         * @param content 公告内容
+         * @param parameters 可选的附加参数
+         *
+         * @throws PermissionDeniedException 当没有权限时抛出
+         * @throws IllegalStateException 当协议异常时抛出
+         *
+         * @see OfflineAnnouncement
+         * @see Announcement.publishTo
+         * @see AnnouncementParametersBuilder
+         */
+        @JvmOverloads
+        @JvmStatic
+        public suspend inline fun Group.publishAnnouncement(
+            content: String,
+            parameters: AnnouncementParameters = AnnouncementParameters.DEFAULT
+        ): OnlineAnnouncement = this.announcements.publish(OfflineAnnouncement(content, parameters))
+
+        /**
+         * 在该群发布群公告并获得 [OnlineAnnouncement]. 发布公告后群内将会出现 "有新公告" 系统提示.
+         *
+         * @param content 公告内容
+         * @param parameters 可选的附加参数
+         *
+         * @throws PermissionDeniedException 当没有权限时抛出
+         * @throws IllegalStateException 当协议异常时抛出
+         *
+         * @see OfflineAnnouncement
+         * @see Announcement.publishTo
+         * @see AnnouncementParametersBuilder
+         */
+        @JvmSynthetic
+        public suspend inline fun Group.publishAnnouncement(
+            content: String,
+            parameters: AnnouncementParametersBuilder.() -> Unit
+        ): OnlineAnnouncement {
+            contract { callsInPlace(parameters, InvocationKind.EXACTLY_ONCE) }
+            return this.announcements.publish(OfflineAnnouncement(content, parameters))
+        }
+    }
 }
 
 /**