The invention discloses a hydraulic equipment cooling device with good heat dissipation performance. The hydraulic equipment cooling device with good heat dissipation performance comprises a condensing box; a water inlet pipe is arranged in the middle of the upper end of the condensing box; vertical oil paths are arranged on the left side and the right side of the interior of the condensing box; horizontal oil pipes are arranged between the vertical oil paths on the left side and the right side; a passive valve is fixedly connected to the left side of the upper end of the horizontal oil pipes;an oil inlet pipe is installed outside the passive valve; a hydraulic oil chamber is fixedly connected to the left side of the oil inlet pipe; a thermometer is arranged on the right side of the upperend of the hydraulic oil chamber; an oil inlet pipe is arranged in the middle of the right end of the hydraulic oil chamber; an electronic valve is arranged inside the oil inlet pipe; a second control circuit is arranged at the lower end of the electronic valve; a temperature control center is arranged on the left side of the second control circuit; and a first control circuit is arranged at thelower end of the right side of the temperature control center. The hydraulic equipment cooling device with good heat dissipation performance has the advantages of being high in heat dissipation efficiency, easy and convenient to operate and stable in structure.