In recent years，“combing the network and cleaning the grid” has been used as an effective means to innovate grass-roots social governance in Xuzhou. It has brought into full play the basic advantages of “big data + grid + iron feet”，and built a closed loop governance system of “comb，clear and cure”. It has played an important role in community governance，major security and hidden trouble investigation，especially withstanding the test of new crown pneumonia epidemic prevention and control. At present，the work of “combing the network and cleaning the grid” is still restricted in the aspects of “through mechanism”，“force allocation”，“police network integration” and “assessment guidance”. The next step is to further promote the development of the new practice of “combing the network and cleaning the grid”，that is，to adhere to the concept of system，strengthen the source governance，and transform the advantages of co construction，CO governance and shared social governance system into the efficiency of public security risk governance；We should adhere to the principle of giving priority to rules，emphasize the rule of law，and improve the path system of social governance innovation；We should adhere to the problem orientation，deepen the linkage and co governance，and build a multi participation community of social governance in the new era；Adhere to resource sharing，strengthen information support，and build a new social governance model of “grid + informatization”.