The invention relates to a whole group logic calibration technology of a 10kV protecting device, in particular to a method for on-line whole group logic calibration of the 10kV protecting device. The functions of a replay protecting test instrument for whole group logic calibration are divided into breakdown simulation, data analysis and logic judgment, wherein the breakdown simulation and data analysis are integrated through a calibration module, and the logic judgment is achieved through an upper control center in a long distance. The calibration module is integrated in a control center of relay protecting equipment, action is conducted only by carrying out breakdown simulation and controlling the relay protecting equipment according to a logic instruction, data after the action are judged and analyzed through the upper control center in the long distance, and remote testing can be achieved. Meanwhile, an interface of the upper control center can also be used for judgment for maintenance personnel, an on-line test is achieved perfectly, power outage is of no need, and the safety, the stability and the reliability of operation of a power grid are guaranteed. The whole operation process is an automatic control process, and therefore the method is simple, convenient and high in efficiency.