diff --git a/src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/block/BlockActivityPubProcessor.kt b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/block/BlockActivityPubProcessor.kt
new file mode 100644
index 00000000..9dd2276d
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/activitypub/service/activity/block/BlockActivityPubProcessor.kt
@@ -0,0 +1,29 @@
+package dev.usbharu.hideout.activitypub.service.activity.block
+
+import dev.usbharu.hideout.activitypub.domain.model.Block
+import dev.usbharu.hideout.activitypub.service.common.AbstractActivityPubProcessor
+import dev.usbharu.hideout.activitypub.service.common.ActivityPubProcessContext
+import dev.usbharu.hideout.activitypub.service.common.ActivityType
+import dev.usbharu.hideout.application.external.Transaction
+import dev.usbharu.hideout.core.query.UserQueryService
+import dev.usbharu.hideout.core.service.block.BlockService
+import org.springframework.stereotype.Service
+
+
+@Service
+class BlockActivityPubProcessor(
+    private val blockService: BlockService,
+    private val userQueryService: UserQueryService,
+    transaction: Transaction
+) :
+    AbstractActivityPubProcessor<Block>(transaction) {
+    override suspend fun internalProcess(activity: ActivityPubProcessContext<Block>) {
+        val user = userQueryService.findByUrl(activity.activity.actor)
+        val target = userQueryService.findByUrl(activity.activity.apObject)
+        blockService.block(user.id, target.id)
+    }
+
+    override fun isSupported(activityType: ActivityType): Boolean = activityType == ActivityType.Block
+
+    override fun type(): Class<Block> = Block::class.java
+}