diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index d17a19fff48341d0386efd4bdcaf33d5812bb730..0ac2e9cb62e543d34c7b79ebb38ac99de645a486 100644
--- a/csst_common/data_manager.py
+++ b/csst_common/data_manager.py
@@ -10,6 +10,7 @@ Modified-History:
     2022-09-29, Bo Zhang, favor CsstMsDataManager instead of CsstMbiDataManager
     2022-10-26, Bo Zhang, reconstruct CsstMsDataManager, deprecate CsstMbiDataManager
     2022-10-28, Bo Zhang, added CsstMsDataManager.query_rc(), dm.dfs_mode, dm.node
+    2022-11-06, Bo Zhang, deleted CsstMbiDataManager
 """
 import glob
 import os
@@ -278,7 +279,7 @@ class CsstMsDataManager:
                                  )
 
     @staticmethod
-    def glob_image(dir_l0, ver_sim="C5"):
+    def glob_image(dir_l0, ver_sim="C5.2"):
         """ glob files in L0 data directory """
         if ver_sim == "C3":
             pattern = os.path.join(dir_l0, "MSC_MS_*_raw.fits")
@@ -489,7 +490,8 @@ class CsstMsDataManager:
             print("Error occurred during the query!")
             return None
 
-    def test_dfs(self):
+    @property
+    def dfs_available(self):
         """ Test if DFS works. """
         try:
             tbl = gaia_query_from_dfs(radius=0.001)
@@ -524,49 +526,3 @@ class CsstMsDataManager:
         l1api = get_l1api()
         l1api.write()
         return
-
-
-class CsstMbiDataManager:
-
-    def __init__(self, ver_sim="C5.2", dir_l0="", dir_l1="", dir_pcref="", path_aux="", force_all_detectors=False):
-        """ initialize the multi-band imaging data manager
-
-        Parameters
-        ----------
-        ver_sim: str
-            version of simulation data, see csst_common.params.CP
-        dir_l0: str
-            L0 directory
-        dir_l1: str
-            L1 directory
-        dir_pcref: str
-            position calibration data directory
-        path_aux: str
-            aux data directory (bias, flat, dark)
-        force_all_detectors: bool
-            if True, assert data for all detectors are available
-
-        Examples
-        --------
-        >>> dm_mbi = CsstMbiDataManager(...)
-        >>> # access L0 directory
-        >>> dm_mbi.dir_l0
-        >>> # access L1 directory
-        >>> dm_mbi.dir_l1
-        >>> # access dir_pcref
-        >>> dm_mbi.dir_pcref
-        >>> # access path_aux
-        >>> dm_mbi.path_aux
-        >>> # access ver_sim
-        >>> dm_mbi.ver_sim
-        >>> # access target detectors
-        >>> dm_mbi.target_detectors
-        >>> # access available detectors
-        >>> dm_mbi.available_detectors
-        >>> # define an L1 file (detector-specified)
-        >>> dm_mbi.l1_detector(detector=6)
-        >>> # define an L1 file (non-detector-specified)
-        >>> dm_mbi.l1_file("flipped_image.fits")
-        """
-        raise DeprecationWarning(
-            "CsstMbiDataManager will no longer be available in some days, please use CsstMsDataManager instead.")