diff --git a/colossalai/autochunk/autochunk_codegen.py b/colossalai/autochunk/autochunk_codegen.py
index b4144196a..3bb2e83be 100644
--- a/colossalai/autochunk/autochunk_codegen.py
+++ b/colossalai/autochunk/autochunk_codegen.py
@@ -17,7 +17,7 @@ from torch.fx.node import Argument, Node, _get_qualified_name, _type_repr, map_a
 
 import colossalai
 
-from .chunk_region_search import ChunkRegionSearch
+from .search_chunk import SearchChunk
 from .utils import delete_free_var_from_last_use, find_idx_by_name, get_node_shape
 
 CODEGEN_AVAILABLE = True
@@ -103,7 +103,7 @@ def emit_code_with_chunk(
     nodes,
     emit_node_func,
     delete_unused_value_func,
-    chunk_region_search: ChunkRegionSearch,
+    chunk_region_search: SearchChunk,
     chunk_infos,
 ):
     """Emit code with nested activation checkpoint
@@ -220,7 +220,7 @@ if CODEGEN_AVAILABLE:
             self.max_memory = max_memory
             self.meta_node = list(meta_graph.graph.nodes)
             # find the chunk regions
-            self.chunk_region_search = ChunkRegionSearch(
+            self.chunk_region_search = SearchChunk(
                 meta_graph, max_memory, print_mem
             )
             self.chunk_infos = self.chunk_region_search.search_region()
diff --git a/colossalai/autochunk/memory_estiamtor.py b/colossalai/autochunk/estiamte_memory.py
similarity index 99%
rename from colossalai/autochunk/memory_estiamtor.py
rename to colossalai/autochunk/estiamte_memory.py
index 034f59e52..90cfd66a0 100644
--- a/colossalai/autochunk/memory_estiamtor.py
+++ b/colossalai/autochunk/estiamte_memory.py
@@ -6,7 +6,6 @@ from torch.fx.node import Node, map_arg
 
 from colossalai.fx.profiler import activation_size, parameter_size
 
-from .index_tracer import IndexTracer
 from .utils import (
     delete_free_var_from_last_use,
     find_idx_by_name,
@@ -15,7 +14,7 @@ from .utils import (
 )
 
 
-class MemoryEstimator(object):
+class EstimateMemory(object):
     def __init__(self) -> None:
         pass
 
diff --git a/colossalai/autochunk/chunk_region_search.py b/colossalai/autochunk/search_chunk.py
similarity index 96%
rename from colossalai/autochunk/chunk_region_search.py
rename to colossalai/autochunk/search_chunk.py
index 47e2fe13c..5c58bda0c 100644
--- a/colossalai/autochunk/chunk_region_search.py
+++ b/colossalai/autochunk/search_chunk.py
@@ -1,8 +1,8 @@
 import copy
 
-from .chunk_selector import ChunkSelector
-from .index_tracer import IndexTracer, ReorderGraph
-from .memory_estiamtor import MemoryEstimator
+from .select_chunk import SelectChunk
+from .trace_index import TraceIndex, ReorderGraph
+from .estiamte_memory import EstimateMemory
 from .utils import (
     get_node_shape,
     is_non_compute_node,
@@ -10,15 +10,15 @@ from .utils import (
 )
 
 
-class ChunkRegionSearch(object):
+class SearchChunk(object):
     def __init__(self, gm, max_memory=None, print_mem=False) -> None:
         self.gm = gm
         self.print_mem = print_mem
-        self.index_tracer = IndexTracer(list(gm.graph.nodes))
+        self.index_tracer = TraceIndex(list(gm.graph.nodes))
         self.index_tracer.trace_index()
         self.reorder_graph = ReorderGraph(self.index_tracer)
-        self.memory_estimator = MemoryEstimator()
-        self.chunk_selector = ChunkSelector(
+        self.memory_estimator = EstimateMemory()
+        self.chunk_selector = SelectChunk(
             self.index_tracer, self.memory_estimator, self.reorder_graph, max_memory=max_memory
         )
 
diff --git a/colossalai/autochunk/chunk_selector.py b/colossalai/autochunk/select_chunk.py
similarity index 97%
rename from colossalai/autochunk/chunk_selector.py
rename to colossalai/autochunk/select_chunk.py
index 119ff8aaf..f0262f1e5 100644
--- a/colossalai/autochunk/chunk_selector.py
+++ b/colossalai/autochunk/select_chunk.py
@@ -1,13 +1,13 @@
-from .index_tracer import IndexTracer, ReorderGraph
-from .memory_estiamtor import MemoryEstimator
+from .trace_index import TraceIndex, ReorderGraph
+from .estiamte_memory import EstimateMemory
 from .utils import is_non_compute_node
 
 
-class ChunkSelector(object):
+class SelectChunk(object):
     def __init__(
         self,
-        index_tracer: IndexTracer,
-        memory_estimator: MemoryEstimator,
+        index_tracer: TraceIndex,
+        memory_estimator: EstimateMemory,
         reorder_graph: ReorderGraph,
         max_memory=None,
     ):
diff --git a/colossalai/autochunk/index_tracer.py b/colossalai/autochunk/trace_index.py
similarity index 99%
rename from colossalai/autochunk/index_tracer.py
rename to colossalai/autochunk/trace_index.py
index 8b4d3aabd..103a05dad 100644
--- a/colossalai/autochunk/index_tracer.py
+++ b/colossalai/autochunk/trace_index.py
@@ -10,7 +10,7 @@ from .utils import (
 )
 
 
-class IndexTracer(object):
+class TraceIndex(object):
     def __init__(self, node_list) -> None:
         self.node_list = node_list
         self.idx_trace_list = self._init_idx_trace_list()
@@ -982,7 +982,7 @@ class IndexTracer(object):
 
 
 class ReorderGraph(object):
-    def __init__(self, index_tracer: IndexTracer) -> None:
+    def __init__(self, index_tracer: TraceIndex) -> None:
         self.index_tracer = index_tracer
         self.all_reorder_map = {i: i for i in range(len(self.index_tracer.idx_trace_list))}
 
diff --git a/tests/test_autochunk/benchmark_autochunk.py b/tests/test_autochunk/benchmark_autochunk.py
index 9daaa364a..081f01368 100644
--- a/tests/test_autochunk/benchmark_autochunk.py
+++ b/tests/test_autochunk/benchmark_autochunk.py
@@ -104,7 +104,7 @@ def benchmark_evoformer():
     model = evoformer_base().cuda()
 
     # build autochunk model
-    # max_memory = 10000  # MB fit memory mode
+    # max_memory = 1000  # MB fit memory mode
     max_memory = None  # min memory mode
     autochunk = _build_autochunk(evoformer_base().cuda(), max_memory, node, pair)