diff --git a/backend/app/api/v1/endpoints/materials.py b/backend/app/api/v1/endpoints/materials.py
index 66b7b32..2c62731 100644
--- a/backend/app/api/v1/endpoints/materials.py
+++ b/backend/app/api/v1/endpoints/materials.py
@@ -6,8 +6,8 @@ from sqlalchemy import text
 
 router = APIRouter(prefix="/materials", tags=["物料选择"])
 
-# 只展示成品 / 半成品（category 字段区分，如 IRIS/成品/… / IRIS/半成品/…）
-TYPE_FILTER = "category ILIKE '%成品%' OR category ILIKE '%半成品%'"
+# 全量展示全部物料类别
+TYPE_FILTER = "1=1"
 
 
 # ============================================================