“How to carry out effective comprehensive”is a difficult problem haunting the comprehensive law enforcement reform.Combination is merely an external result of comprehensive law enforcement reform，but the reconstruction of division of labor is its actual consequence.Improving the effectiveness of law enforcement is the core demand of the reform.In the efficiencyoriented comprehensive law enforcement，it is essential to deal with the two basic problems of function optimization and coordination of power operation.The function optimization includes the scientific division of matters under the comprehensive scope and the scientific cutting of the process of administrative power.The former adopts the“high demandeasy supply”standard of restricting comprehensive law enforcement in integrated areas or specific areas.While the cutting of the latter mainly follows nature of specific administrative power.Aiming at the inevitable division of labor，we should establish procedural synergy mechanism and structural synergy promotion mechanism for management decisionmaking and comprehensive law enforcement.The former contains the procedural arrangements for the overall considerations，joint action and information sharing；The latter indicates the organizational arrangements based on territorial management，including different degrees of constraints and bond，as well as the determination of superior supervisors or guiding departments that play a supervisory role in territorial synergy.