The invention discloses a networking control method of energy storage inverters based on quasi real-time synchronous signals, and relates to the field of micro-grid operational control. The networking control method includes the steps that the S1, whether a main energy storage inverter is in grid connection is judged, if yes, the S2 is carried out, and if not, the S3 is carried out; the S2, a master controller collects grid connection voltage and current signals, processes the voltage and current signals, broadcasts the processed voltage signals to a slave controller and meanwhile the slave controller collects grid connection current signals from the slave controller and carries out preprocessing; the S3, the master controller generates grid connection voltage signals according to known conditions and broadcasts the grid connection voltage signals to the slave controller, and the master controller and the slave controller collect the grid connection current signals of the corresponding energy storage inverter and carry out preprocessing respectively; the S4, the master controller carries out computation on the processed voltage and current signals to obtain control signals so as to control the main energy storage inverter to work; the slave controller carries out computation on the processed grid connection current signals and voltage signals broadcast from the master controller to obtain control signals to control a slave energy storage inverters to work.