The invention discloses a folding lifting device of power equipment. The folding lifting device comprises a power equipment bearing plate and an installation base, wherein an installation clamping groove is formed in the center of the top surface of the installation base; a movable clamping block is arranged in the installation clamping groove; a fixed base is installed near one corner of the top surface of the installation base; a support upright post is connected to the center of the top surface of the fixed base; a pin shaft with a cap is arranged in a position, which is close to the top end, of one side of the support upright post; a gap is formed in the center of the top end of the support upright post; a folding rod is connected to the gap in the top end of the support upright post; a stop block is arranged on the other end of the pin shaft with the cap; a chute is formed in the center of the one side surface of the folding rod; a sliding block is arranged in the chute; a connecting seat is connected to the other end of the folding rod; the power equipment bearing plate is connected to the top end of the connecting seat. According to the folding lifting device, the folding rod is combined with a hydraulic device, so that a lifting function is realized, additionally, the device can be folded, and the occupied space is small.