Abstract: According to one embodiment of a system for measuring a load impedance, comprising: a switch module, a first reference impedance, a second reference impedance, and a control module, wherein the switch module connects the first reference impedance, the second reference impedance, and the load impedance, respectively; the control module connects the switch module; the control module connects the first reference impedance via controlling the switch module to obtain a first voltage value; the control module connects the second reference impedance via controlling the switch module to obtain a second voltage value; the control module connects the load impedance via controlling the switch module to obtain a load voltage value; and the control module calculates the measured value of the load impedance according to the first voltage value, the second voltage value, and the load voltage value.