The invention discloses a controllable lifting suspension with lower steel plate springs and a damping function. The controllable lifting suspension comprises a lifting device, a buffering and dampingdevice and a wheel mounting device. The lifting device is formed by slide rods and a lifting driving device, the slide rods in co-directional lifting are provided with slide parts and symmetrically arranged on two sides of the lifting driving device, and the adjacent slide rods are fixedly connected through connectors. The surface of a mosquito eliminating component is provided with a lampshade which is internally provided with an ultraviolet mosquito attracting lamp tube, a direct-current fan is arranged at the bottom end of the ultraviolet mosquito attracting lamp tube, the bottom end of the direct-current fan is provided with a collection cavity, a collecting device is arranged in the collecting cavity, and the surface of the collecting device is provided with a puller. By arrangementof a buffering and damping component, impact buffering and vibration attenuation effects can be achieved; by control of lifting of the lifting driving device, suspension assembly stretching and retracting guide and bending moment bearing effects are achieved.