The invention relates to the technical field of automobiles, in particular to an automobile engine heat dissipation device. The device comprises a bottom heat absorbing
copper plate, a side heat absorbing
copper plate, a first telescopic spring and a second telescopic spring, the sides, away from the engine, of the bottom heat absorbing
copper plate and the side heat absorbing copper plate are fixedly connected with box bodies, a plurality of
heat conducting sheets are horizontally arranged on the box bodies,
water cooling hoses are fixedly connected with two sides of the box bodies, the firsttelescopic spring, the second telescopic spring, the side heat absorbing copper plate and the bottom heat absorbing copper plate are connected end-to-end to form a square opening, an engine is arranged in the opening, a heat dissipation fan is arranged above the engine, a
temperature control switch is arranged on the lower left portion at the top of the engine, and the
water cooling hoses are sequentially communicated with a bottom box body of the bottom heat absorbing copper plate, a delivery pump, a heat dissipation box and a right box body of the side heat absorbing copper plate in the
clockwise direction. According to the device, an external
water cooling heat dissipation
system is adopted,
air cooling heat dissipation is adopted as an auxiliary manner to conduct heat dissipation on the engine, the
cooling effect is good, the adaptability is wide, and the device is worthy of popularization.