The invention provides a combined device for contactless type measurement through electrical testing equipment and an application thereof. The combined device for the contactless type measurement is used for digitally collecting power equipment signals and further wirelessly transmitting the power equipment signals to the electrical testing equipment, and comprises one control host and multiple detection terminals, wherein the control host and the multiple detection terminals form a star network through the remote communication of a radio frequency module, so that the point-to-multipoint combined measurement device is formed; one end of the combined measurement device is connected with power equipment through the detection terminals; the other end of the combined measurement device is connected with the electrical testing equipment through the control host; and modules of the detection terminals are connected with the power equipment, so that the corresponding electrical test measurement is performed on the power equipment. Based on a contactless type sensing technique and a radio frequency technique, the device adopts a contactless type sensor technique to replace the traditional measurement way; through a networking technique, the digital collection and the transmission are realized; as the procedures of measurement, collection and the like are effectively separated, the working of workers in the risky areas is prevented; and therefore, the working efficiency is improved and the operation risk is lowered.