With the ongoing investment in the emergency management construction in recent years，the hard_x005fware conditions including the infrastructure，materials and equipment and so on’for the Chinese government at all levels against various sudden disasters have been greatly developed．The focal points of emergency capacity building have been converting to up-grading the capabilities of dynamic organizing and coordination in emergency handling processes，enhancing the capabilities of early warning and prevention，hoisting the degrees of scientific and normative management，and improving the performances of emergency response． Following this new requirement，the paper applied the capacity maturity model ( CMM) to the jobs of government’s emergency management．The concept of capacity maturity of government emergency management was proposed， and a specific framework of maturity evaluation of the emergency management capacity has been established．The key processes of emergency management were recognized，the key process areas ( KPA) for each maturity level were extracted and simplified，the objectives of each key process were distinguished and the evaluating indicators interrelated system was proposed．Then the appropriate evaluation method and evaluation program were built up．Finally the maturity of Shanxi provience’s local government emergency capability was evaluated．Through the experiment，not only the comparable grades of maturity of Shanxi province has been derived，but also the weak links in emergency management process were found and the correct way of efforts for following steps were drawn up．This evaluation model could provide supports for setting up the continuous improvement method for lifting the qualitative effectiveness of dynamic organization of emergency management.