The invention provides an engineering application method capable of quickly determining the closed loop electricity dispatching feasibility of 10kV distributing lines. The method includes the steps that 1, influence factors through which the closed loop electricity dispatching feasibility of 10kV distributing lines can be quickly judged are determined through analysis; 2, boundary conditions of the influence factors are determined from the perspective of engineering application; 3, a judgment process for the influence factors of the method is formulated. The method has the advantages that electricity dispatching for which 10kV distributing lines can be completed through closed loop electricity dispatching can be quickly judged, analysis speed is greatly increased compared with that of conventional load flow calculation analysis, and dispatching analysis personnel can conveniently make quick judgment in the daily vast amount of electricity dispatching work; popularization and application are easy, analysis personnel do not have to make specialty analysis with specialized load flow calculation analysis tools, whether two 10kV distributing lines have the closed loop electricity dispatching conditions or not can be judged simply by using the method, and on-duty dispatching personnel can conveniently make quick judgment in emergency circumstances.