Abstract: In tea producing areas, one phrase current will be increased when the three phase loads of high power tea making machinery is imbalance. The large current can make the power lines heat. At least, the meter and low-voltage line are burned out, and at worst, the distribution cabinet and distribution transformer are burned out, resulting in fire and property loss and endangering personal safety. Because of this, this paper studies the method of optimization and transformation of three-phase load circuit of high-power tea making machinery. Then the three-phase load is evenly distributed to three phases, which solves the problem of three-phase load imbalance in tea producing areas.