diff --git a/configs/datasets/cmb/cmb_gen.py b/configs/datasets/cmb/cmb_gen.py
index 5d379ad1..39279d8c 100644
--- a/configs/datasets/cmb/cmb_gen.py
+++ b/configs/datasets/cmb/cmb_gen.py
@@ -1,4 +1,4 @@
 from mmengine.config import read_base
 
 with read_base():
-    from .cmb_gen_72cbb7 import cmb_datasets  # noqa: F401, F403
+    from .cmb_gen_dfb5c4 import cmb_datasets  # noqa: F401, F403
diff --git a/configs/datasets/cmb/cmb_gen_72cbb7.py b/configs/datasets/cmb/cmb_gen_72cbb7.py
deleted file mode 100644
index 48729b9f..00000000
--- a/configs/datasets/cmb/cmb_gen_72cbb7.py
+++ /dev/null
@@ -1,43 +0,0 @@
-from opencompass.openicl.icl_prompt_template import PromptTemplate
-from opencompass.openicl.icl_retriever import FixKRetriever
-from opencompass.openicl.icl_inferencer import GenInferencer
-from opencompass.datasets import CMBDataset
-
-
-cmb_datasets = []
-
-cmb_reader_cfg = dict(
-    input_columns=["exam_type", "exam_class", "question_type", "question", "option_str"],
-    output_column=None,
-    train_split="val",
-    test_split="test"
-)
-
-cmb_infer_cfg = dict(
-    ice_template=dict(
-        type=PromptTemplate,
-        template=dict(
-            begin="</E>",
-            round=[
-                dict(
-                    role="HUMAN",
-                    prompt=f"以下是中国{{exam_type}}中{{exam_class}}考试的一道{{question_type}}，不需要做任何分析和解释，直接输出答案选项。\n{{question}}\n{{option_str}} \n 答案: ",
-                ),
-                dict(role="BOT", prompt="{answer}"),
-            ],
-        ),
-        ice_token="</E>",
-    ),
-    retriever=dict(type=FixKRetriever, fix_id_list=[0, 1, 2, 3, 4]),
-    inferencer=dict(type=GenInferencer),
-)
-
-cmb_datasets.append(
-    dict(
-        type=CMBDataset,
-        path="./data/CMB/",
-        abbr="cmb",
-        reader_cfg=cmb_reader_cfg,
-        infer_cfg=cmb_infer_cfg
-    )
-)
\ No newline at end of file
diff --git a/configs/datasets/cmb/cmb_gen_dfb5c4.py b/configs/datasets/cmb/cmb_gen_dfb5c4.py
new file mode 100644
index 00000000..2547010d
--- /dev/null
+++ b/configs/datasets/cmb/cmb_gen_dfb5c4.py
@@ -0,0 +1,49 @@
+from opencompass.openicl.icl_prompt_template import PromptTemplate
+from opencompass.openicl.icl_retriever import ZeroRetriever
+from opencompass.openicl.icl_inferencer import GenInferencer
+from opencompass.datasets import CMBDataset
+from opencompass.openicl.icl_evaluator import AccEvaluator
+from opencompass.utils.text_postprocessors import multiple_select_postprocess
+
+
+cmb_datasets = []
+for split in ["val", "test"]:
+    cmb_reader_cfg = dict(
+        input_columns=["exam_type", "exam_class", "question_type", "question", "option_str"],
+        output_column="answer",
+        train_split=split,
+        test_split=split,
+    )
+
+    cmb_infer_cfg = dict(
+        prompt_template=dict(
+            type=PromptTemplate,
+            template=dict(
+                round=[
+                    dict(
+                        role="HUMAN",
+                        prompt=f"以下是中国{{exam_type}}中{{exam_class}}考试的一道{{question_type}}，不需要做任何分析和解释，直接输出答案选项。\n{{question}}\n{{option_str}} \n 答案: ",
+                    ),
+                    dict(role="BOT", prompt="{answer}"),
+                ],
+            ),
+        ),
+        retriever=dict(type=ZeroRetriever),
+        inferencer=dict(type=GenInferencer, max_out_len=10),
+    )
+
+    cmb_eval_cfg = dict(
+        evaluator=dict(type=AccEvaluator),
+        pred_postprocessor=dict(type=multiple_select_postprocess),
+    )
+
+    cmb_datasets.append(
+        dict(
+            abbr="cmb" if split == "val" else "cmb_test",
+            type=CMBDataset,
+            path="./data/CMB/",
+            reader_cfg=cmb_reader_cfg,
+            infer_cfg=cmb_infer_cfg,
+            eval_cfg=cmb_eval_cfg,
+        )
+    )
diff --git a/opencompass/datasets/cmb.py b/opencompass/datasets/cmb.py
index 684c88f5..f2dd321c 100644
--- a/opencompass/datasets/cmb.py
+++ b/opencompass/datasets/cmb.py
@@ -13,18 +13,19 @@ class CMBDataset(BaseDataset):
 
     @staticmethod
     def load(path: str):
-        with open(osp.join(path, 'test.json'), 'r', encoding='utf-8') as f:
-            test_data = json.load(f)
         with open(osp.join(path, 'val.json'), 'r', encoding='utf-8') as f:
             val_data = json.load(f)
-
-        for da in test_data:
-            da['option_str'] = '\n'.join(
-                [f'{k}. {v}' for k, v in da['option'].items() if len(v) > 1])
-        for da in val_data:
-            da['option_str'] = '\n'.join(
-                [f'{k}. {v}' for k, v in da['option'].items() if len(v) > 1])
-
-        test_dataset = Dataset.from_list(test_data)
+        for d in val_data:
+            d['option_str'] = '\n'.join(
+                [f'{k}. {v}' for k, v in d['option'].items() if len(v) > 1])
+            d['answer'] = 'NULL'
         val_dataset = Dataset.from_list(val_data)
-        return DatasetDict({'test': test_dataset, 'val': val_dataset})
+
+        with open(osp.join(path, 'test.json'), 'r', encoding='utf-8') as f:
+            test_data = json.load(f)
+        for d in test_data:
+            d['option_str'] = '\n'.join(
+                [f'{k}. {v}' for k, v in d['option'].items() if len(v) > 1])
+        test_dataset = Dataset.from_list(test_data)
+
+        return DatasetDict({'val': val_dataset, 'test': test_dataset})
diff --git a/opencompass/utils/text_postprocessors.py b/opencompass/utils/text_postprocessors.py
index ec668f4d..f36da458 100644
--- a/opencompass/utils/text_postprocessors.py
+++ b/opencompass/utils/text_postprocessors.py
@@ -98,3 +98,9 @@ def first_number_postprocess(text: str) -> float:
 
     # if a match is found, return it. Otherwise, return None.
     return float(match.group(1)) if match else None
+
+
+@TEXT_POSTPROCESSORS.register_module('multiple-select')
+def multiple_select_postprocess(text: str) -> str:
+    ret = set([t for t in text if t.isupper()])
+    return ''.join(sorted(ret))