The high proportion of photovoltaic system connected to the distribution network causes the voltage to exceed the limit. The traditional reactive voltage adjustment scheme fails to work in the high impedance ratio distribution network. The technical scheme which uses the energy storage system to control voltage is widely adopted. However, the energy storage system in the existing technical scheme may cause excessive charging and discharging problems during the voltage control process. Aiming at these problems, a voltage control strategy is proposed based on the coordination of energy storage active power and on-load tap changer (OLTC）. Based on the analysis of the influence of photovoltaic connection on the voltage of distribution network, the measured voltage data are used to control the active power of energy storage, so as to realize the rapid regulation and control of the voltage level of access nodes. At the same time, the reference values of the state of charge of energy storage are added to the OLTC control link. And the OLTC tap actions are jointly controlled by the node voltage information and the state of charge of energy storage, so as to realize the regulation and control of the overall voltage level of the distribution network and avoid excessive charging and discharging of the energy storage system. Finally, the simulation results verified in IEEE 13-node system show that the proposed strategy can solve the problem of voltage exceeding the limit in the distribution network, and avoid excessive charging and discharging of the energy storage system. So the service life of the energy storage system is extended and the rational utilization of the resources in the distribution network is realized.