diff --git a/src/main/java/com/assu/server/infra/firebase/FirebaseInitLogger.java b/src/main/java/com/assu/server/infra/firebase/FirebaseInitLogger.java
new file mode 100644
index 0000000..a0fc1ee
--- /dev/null
+++ b/src/main/java/com/assu/server/infra/firebase/FirebaseInitLogger.java
@@ -0,0 +1,31 @@
+package com.assu.server.infra.firebase;
+
+import com.google.firebase.FirebaseApp;
+import jakarta.annotation.PostConstruct;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+public class FirebaseInitLogger {
+
+    private static boolean logged = false;
+
+    @PostConstruct
+    public void printFcmInitOnce() {
+        if (logged) return; // 이미 찍었으면 무시
+
+        try {
+            FirebaseApp app = FirebaseApp.getInstance();
+            var options = app.getOptions();
+
+            log.info("[FCM_INIT] projectId={}",
+                    options.getProjectId());
+
+            logged = true;
+
+        } catch (Exception e) {
+            log.error("[FCM_INIT] FirebaseApp 초기화 실패", e);
+        }
+    }
+}
\ No newline at end of file