Abstract: A 10 kV line voltage regulation control strategy is proposed in this paper, which can synchronously collect the voltage and current of the power supply side and the load side of the distribution line, and adjust the gear of the tap switch of the line voltage regulator according to the sampling value, and control the opening and closing action of the circuit breaker on the incoming line side and the outgoing line side. Finally, the two-way adjustment of the voltage of the 10 kV distribution line is realized, which effectively solve the problem of voltage over-limit of the distribution line, improves the qualification rate of the line voltage, and effectively guarantees that the voltage at both ends of the series line is controlled within the range of 10(1±0.1)kV.