The invention discloses a power factor compensation control circuit of a self-turn-off device. The power factor compensation control circuit mainly comprises a switch circuit, a logic drive circuit, a pulse width modulation circuit, a zero point detection circuit, a power factor detection circuit, a filter circuit and a capacitor. By using the characteristic of turn-off control of the self-turn-off device, two self-turn-off devices connected in parallel with diodes are adopted to form the switch circuit, and the switch circuit is controlled to carry out charge and discharge voltage control on the capacitor, thus the control over the power factor compensation is realized. According to the power factor compensation control device manufactured in the invention, the number of the control circuit is reduced by using one group of capacitor to replace multiple groups of traditional combined capacitors, the loss is little because a zero point soft switch controls charge and discharge, not only can automatic control be realized, but also the advantages of simple structure, low cost, convenience for use and maintenance, and the like are achieved, and the power factor compensation control circuit is especially suitable for wide range of users consuming power of thousands Watt to tens of thousands of Watt.