diff --git a/pcdet/models/backbones_3d/vfe/vfe_template.py b/pcdet/models/backbones_3d/vfe/vfe_template.py
new file mode 100644
index 0000000..a862e3e
--- /dev/null
+++ b/pcdet/models/backbones_3d/vfe/vfe_template.py
@@ -0,0 +1,22 @@
+import torch.nn as nn
+
+
+class VFETemplate(nn.Module):
+    def __init__(self, model_cfg, **kwargs):
+        super().__init__()
+        self.model_cfg = model_cfg
+
+    def get_output_feature_dim(self):
+        raise NotImplementedError
+
+    def forward(self, **kwargs):
+        """
+        Args:
+            **kwargs:
+
+        Returns:
+            batch_dict:
+                ...
+                vfe_features: (num_voxels, C)
+        """
+        raise NotImplementedError