diff --git a/dygraph/deploy/python/infer.py b/dygraph/deploy/python/infer.py
index 933966d6219c1bc0ea603e24da5a862e20bf7ad9..abde5fb5a2b12599d1bacb747c4e9939b9376e49 100644
--- a/dygraph/deploy/python/infer.py
+++ b/dygraph/deploy/python/infer.py
@@ -23,7 +23,6 @@ from PIL import Image
 import cv2
 import numpy as np
 import paddle
-import paddle.fluid as fluid
 from preprocess import preprocess, ResizeOp, NormalizeImageOp, PermuteOp, PadStride
 from visualize import visualize_box_mask
 from paddle.inference import Config
diff --git a/dygraph/ppdet/modeling/architectures/ssd.py b/dygraph/ppdet/modeling/architectures/ssd.py
index a1b4aec20d9130d544df08a4993f03ab1e906100..d11aa88da7ed46e01c247b51deb0ab7fe99bfe9f 100644
--- a/dygraph/ppdet/modeling/architectures/ssd.py
+++ b/dygraph/ppdet/modeling/architectures/ssd.py
@@ -2,7 +2,6 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-from paddle import fluid
 from ppdet.core.workspace import register
 from .meta_arch import BaseArch