The invention relates to an anti-short circuit impact self-recovering mode high-frequency impulse dehydrating and power supplying combination device which is mainly used for solving the problems of a big control current, an unstable high-voltage electric field and long restoring time of a dehydrating electric field of the existing electrical dehydrating device. The input end of a power frequency rectifying unit (1) is respectively connected with an AC380V power supply, the output end of the power frequency rectifying unit (1) is connected with the input end of a high frequency inverter (2) which is connected with the input end of a high-frequency impulse transformer (5) through an electric reactor (3) and a current transformer (4), and the output end of the high-frequency impulse transformer (5) is connected with three inlet wire interfaces of a dehydrating container system (12) through three peak suppressers. The constant current self-recovering high-frequency impulse combination electrode dehydrating device provided by the invention has the characteristics that the functions of constant current and self recovering are achieved, the formation of a stable conductive ripple during the process of electric dehydrating of crude oil can be eliminated effectively, so that a high voltage dehydrating electric field is established stably.