diff --git a/python/fate/arch/dataframe/ops/_encoder.py b/python/fate/arch/dataframe/ops/_encoder.py
index 044c2163b7..6886def78d 100644
--- a/python/fate/arch/dataframe/ops/_encoder.py
+++ b/python/fate/arch/dataframe/ops/_encoder.py
@@ -83,7 +83,20 @@ def _reducer(categories1_, categories2_):
 
 
 def _one_hot_encode(block_table, block_indexes, data_manager, categories, dtype):
-    categories = [np.array(category) for category in categories]
+    transform_categories = []
+    mock_data = []
+    for category in categories:
+        transform_categories.append([np.array(cate) for cate in category])
+        shapes = [cate.shape[0] for cate in transform_categories[-1]]
+        row_shape = max(shapes)
+        column_shape = len(categories[-1])
+        mock_cate_data = torch.zeros((row_shape, column_shape), dtype=getattr(torch, dtype))
+        for rid in range(row_shape):
+            for cid in range(column_shape):
+                mock_cate_data[rid][cid] = rid % shapes[cid]
+
+        mock_data.append(mock_cate_data)
+
     block_index_set = set(block_indexes)
 
     def _encode(blocks):
@@ -96,8 +109,8 @@ def _encode(blocks):
                 continue
 
             enc = OneHotEncoder(dtype=dtype)
-            enc.fit([[1]])  # one hot encoder need to fit first.
-            enc.categories_ = categories[idx]
+            enc.fit(mock_data[idx])  # one hot encoder need to fit first.
+            enc.categories_ = transform_categories[idx]
             idx += 1
             enc_blocks.append(enc.transform(block).toarray())
 
@@ -108,79 +121,6 @@ def _encode(blocks):
     return block_table.mapValues(_encode)
 
 
-def bucketize(df: DataFrame, boundaries: Union[pd.DataFrame, dict]):
-    if isinstance(boundaries, pd.DataFrame):
-        boundaries = dict([(_name, boundaries[_name].tolist()) for _name in boundaries])
-    elif not isinstance(boundaries, dict):
-        raise ValueError("boundaries should be pd.DataFrame or dict")
-
-    data_manager = df.data_manager.duplicate()
-    field_names = list(filter(lambda field_name: field_name in boundaries, data_manager.infer_operable_field_names()))
-    blocks_loc = data_manager.loc_block(field_names)
-
-    _boundaries_list = []
-    for name, (_bid, _) in zip(field_names, blocks_loc):
-        if BlockType.is_tensor(data_manager.blocks[_bid].block_type):
-            _boundary = torch.tensor(boundaries[name])
-            _boundary[-1] = torch.inf
-        else:
-            _boundary = np.array(boundaries[name])
-            _boundary[-1] = np.inf
-
-        _boundaries_list.append((_bid, _, _boundary))
-
-    narrow_blocks, dst_blocks = data_manager.split_columns(
-        field_names, BlockType.get_block_type(BUCKETIZE_RESULT_TYPE)
-    )
-
-    def _mapper(
-        blocks, boundaries_list: list = None, narrow_loc: list = None, dst_bids: list = None, dm: DataManager = None
-    ):
-        ret_blocks = []
-        for block in blocks:
-            if isinstance(block, torch.Tensor):
-                ret_blocks.append(block.clone())
-            elif isinstance(block, np.ndarray):
-                ret_blocks.append(block.copy())
-            else:
-                ret_blocks.append(block)
-
-        for i in range(len(ret_blocks), dm.block_num):
-            ret_blocks.append([])
-
-        for bid, offsets in narrow_loc:
-            ret_blocks[bid] = ret_blocks[bid][:, offsets]
-
-        for dst_bid, (src_bid, src_offset, boundary) in zip(dst_bids, boundaries_list):
-            if isinstance(blocks[src_bid], torch.Tensor):
-                ret = torch.bucketize(blocks[src_bid][:, [src_offset]], boundary, out_int32=False)
-            else:
-                ret = torch.bucketize(blocks[src_bid][:, [src_offset]], boundary)
-
-            ret_blocks[dst_bid] = dm.blocks[dst_bid].convert_block(ret)
-
-        return ret_blocks
-
-    bucketize_mapper = functools.partial(
-        _mapper, boundaries_list=_boundaries_list, narrow_loc=narrow_blocks, dst_bids=dst_blocks, dm=data_manager
-    )
-
-    block_table = df.block_table.mapValues(bucketize_mapper)
-
-    block_indexes = data_manager.infer_operable_blocks()
-    if len(block_indexes) > 1:
-        to_promote_types = []
-        for bid in block_indexes:
-            to_promote_types.append((bid, BlockType.get_block_type(BUCKETIZE_RESULT_TYPE)))
-
-        data_manager.promote_types(to_promote_types)
-        block_table, data_manager = compress_blocks(block_table, data_manager)
-
-    return DataFrame(
-        df._ctx, block_table, partition_order_mappings=df.partition_order_mappings, data_manager=data_manager
-    )
-
-
 def bucketize(df: DataFrame, boundaries: Union[pd.DataFrame, dict]):
     if isinstance(boundaries, pd.DataFrame):
         boundaries = dict([(_name, boundaries[_name].tolist()) for _name in boundaries])
diff --git a/python/requirements-fate.txt b/python/requirements-fate.txt
index 5ad38c0545..4fd7b66588 100644
--- a/python/requirements-fate.txt
+++ b/python/requirements-fate.txt
@@ -15,5 +15,4 @@ beautifultable
 requests<2.26.0
 grpcio==1.46.3
 protobuf==3.19.6
-scikit-learn==1.2.1; sys_platform == 'darwin' and platform_machine == 'arm64'
-scikit-learn==1.0.1; sys_platform != 'darwin' or platform_machine != 'arm64'
+scikit-learn
diff --git a/python/setup.py b/python/setup.py
index 553a948b22..0d1d4dc884 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -13,8 +13,7 @@
     "cloudpickle==2.1.0",
     "click",
     "ruamel.yaml==0.16",
-    "scikit-learn==1.2.1; sys_platform == 'darwin' and platform_machine == 'arm64'",
-    "scikit-learn==1.0.1; sys_platform != 'darwin' or platform_machine != 'arm64'",
+    "scikit-learn",
     "numpy",
     "pandas",
     "transformers",