Abstract: Several kinds of medium voltage distribution network voltage regulation technology were compared and analyzed.The voltage regulation technology with the coordination control of multistage voltage in the main active distribution network was verified with the advantage such as broader adjusting range, high information integration, good voltage regulation control effect which will be the trend of the voltage adjusting technology. The results of comparative analysis show that the selection of voltage regulation technology scheme of medium voltage distribution network should be combined with the actual situation of distribution network to make a reasonable selection through scientific analysis with the consideration of economic investment.