The invention discloses an automatic induction solar energy-saving street lamp. The automatic induction solar energy-saving street lamp comprises a base; an accumulator set is fixedly connected to thetop of a support connecting piece and positioned in an inner cavity of a lamp rod; a processor is fixedly connected to the side, far from the accumulator set, of a first support plate; a data processor is fixedly connected to the side, far from the first support plate, of the processor; a time relay is fixedly connected to the side, far from the data processor, of a second support plate; a lightinduction device is fixedly connected to the side, far from the time relay, of a third support plate; a solar panel is fixedly connected to the side, far from a support frame, of a deflection device;an energy saving lamp is fixedly connected to the side, far from a fixed plate, of a conversion device; and the automatic induction solar energy-saving street lamp relates to the technical field of new energy and energy conservation. Through radiance detection, the lamp is replaced to guarantee normal illumination; and the energy is supplied through solar energy, so that the energy is saved, the electric energy consumption is reduced, the environment is protected, the light pollution is prevented, and normal life routine is guaranteed.