diff --git a/apps/application/migrations/0025_alter_application_prologue.py b/apps/application/migrations/0025_alter_application_prologue.py
new file mode 100644
index 00000000000..8fcae8245cd
--- /dev/null
+++ b/apps/application/migrations/0025_alter_application_prologue.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2.18 on 2025-01-22 09:53
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('application', '0024_applicationaccesstoken_language'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='application',
+            name='prologue',
+            field=models.CharField(default='', max_length=40960, verbose_name='开场白'),
+        ),
+    ]
diff --git a/apps/application/models/application.py b/apps/application/models/application.py
index 0f611cea88d..8e6200d0706 100644
--- a/apps/application/models/application.py
+++ b/apps/application/models/application.py
@@ -42,7 +42,7 @@ class Application(AppModelMixin):
     id = models.UUIDField(primary_key=True, max_length=128, default=uuid.uuid1, editable=False, verbose_name="主键id")
     name = models.CharField(max_length=128, verbose_name="应用名称")
     desc = models.CharField(max_length=512, verbose_name="引用描述", default="")
-    prologue = models.CharField(max_length=4096, verbose_name="开场白", default="")
+    prologue = models.CharField(max_length=40960, verbose_name="开场白", default="")
     dialogue_number = models.IntegerField(default=0, verbose_name="会话数量")
     user = models.ForeignKey(User, on_delete=models.DO_NOTHING)
     model = models.ForeignKey(Model, on_delete=models.SET_NULL, db_constraint=False, blank=True, null=True)