diff --git a/src/base/slow_conv3d_forward.h b/src/base/slow_conv3d_forward.h
new file mode 100644
index 00000000..66daa3ea
--- /dev/null
+++ b/src/base/slow_conv3d_forward.h
@@ -0,0 +1,64 @@
+#ifndef INFINI_OPS_BASE_SLOW_CONV3D_FORWARD_H_
+#define INFINI_OPS_BASE_SLOW_CONV3D_FORWARD_H_
+
+#include "operator.h"
+
+namespace infini::ops {
+
+class SlowConv3dForward : public Operator<SlowConv3dForward> {
+ public:
+  SlowConv3dForward(const Tensor input, const Tensor weight,
+                    const std::vector<int64_t> kernel_size,
+                    const std::vector<int64_t> stride,
+                    const std::vector<int64_t> padding, Tensor output)
+      : input_shape_{input.shape()},
+        input_strides_{input.strides()},
+        input_type_{input.dtype()},
+        weight_shape_{weight.shape()},
+        weight_strides_{weight.strides()},
+        weight_type_{weight.dtype()},
+        output_shape_{output.shape()},
+        output_strides_{output.strides()},
+        output_type_{output.dtype()},
+        kernel_size_{kernel_size},
+        stride_{stride},
+        padding_{padding},
+        device_index_{output.device().index()} {}
+
+  virtual void operator()(const Tensor input, const Tensor weight,
+                          const std::vector<int64_t> kernel_size,
+                          const std::vector<int64_t> stride,
+                          const std::vector<int64_t> padding,
+                          Tensor output) const = 0;
+
+ protected:
+  Tensor::Shape input_shape_;
+
+  Tensor::Strides input_strides_;
+
+  DataType input_type_;
+
+  Tensor::Shape weight_shape_;
+
+  Tensor::Strides weight_strides_;
+
+  DataType weight_type_;
+
+  Tensor::Shape output_shape_;
+
+  Tensor::Strides output_strides_;
+
+  DataType output_type_;
+
+  std::vector<int64_t> kernel_size_{};
+
+  std::vector<int64_t> stride_{};
+
+  std::vector<int64_t> padding_{};
+
+  int device_index_{0};
+};
+
+}  // namespace infini::ops
+
+#endif