diff --git a/onnxruntime/core/providers/cpu/nn/pool_base.h b/onnxruntime/core/providers/cpu/nn/pool_base.h
index f4d0082866..3d1edfbdaf 100644
--- a/onnxruntime/core/providers/cpu/nn/pool_base.h
+++ b/onnxruntime/core/providers/cpu/nn/pool_base.h
@@ -88,7 +88,7 @@ class LpPool {
 
   template <typename T>
   static void Process(const T& x_data, T& y_data, const PoolProcessContext& cxt) {
-    y_data += static_cast<T>(std::pow(x_data, cxt.p_));
+    y_data += static_cast<T>(std::pow(std::abs(x_data), cxt.p_));
   }
 
   template <typename T>
diff --git a/onnxruntime/test/providers/cpu/nn/pool_op_test.cc b/onnxruntime/test/providers/cpu/nn/pool_op_test.cc
index f84da5cf9a..b9db7ad47f 100644
--- a/onnxruntime/test/providers/cpu/nn/pool_op_test.cc
+++ b/onnxruntime/test/providers/cpu/nn/pool_op_test.cc
@@ -1264,25 +1264,6 @@ TEST(PoolTest, LpPool) {
   test.Run();
 }
 
-TEST(PoolTest, LpPoolWithNegativeNumbers) {
-  OpTester test("LpPool");
-
-  test.AddAttribute("p", static_cast<int64_t>(1));
-  test.AddAttribute("auto_pad", "");
-  test.AddAttribute("strides", std::vector<int64_t>{2});
-  test.AddAttribute("pads", vector<int64_t>{0, 0});
-  test.AddAttribute("kernel_shape", vector<int64_t>{2});
-
-  std::vector<float> x_vals = {0.2f, -0.6f};
-  std::vector<int64_t> x_dims = {1, 1, 2};
-  std::vector<int64_t> expected_dims = {1, 1, 1};
-  std::vector<float> expected_vals = {-0.4f};
-
-  test.AddInput<float>("X", x_dims, x_vals);
-  test.AddOutput<float>("Y", expected_dims, expected_vals);
-  test.Run();
-}
-
 TEST(PoolTest, GlobalLpPool) {
   OpTester test("GlobalLpPool");
   test.AddAttribute("p", static_cast<int64_t>(3));