Solar street lamp with good cooling effect for night lighting

The invention relates to a solar street lamp with a good cooling effect for night lighting. The solar street lamp comprises a base, a lamp pole, a photovoltaic panel and a lighting device, wherein thelighting device comprises a cross rod, a shell, a lighting mechanism, a heat absorption mechanism and two heat dissipation mechanisms; the lighting mechanism comprises a lamp housing, a substrate, aglass sheet and a plurality of beads; the heat absorption mechanism comprises a first motor, a rotary shaft, a bearing, two heat absorption components and two lifting components; and each heat dissipation mechanism comprises a heat dissipation pipe, a filter screen and a rotating rod. According to the solar street lamp with the good cooling effect for night lighting, the substrate can be cooled bymeans of heat absorption through the heat absorption mechanism; by exchanging the positions of two heat absorption blocks in cooperation with operation of the heat dissipation mechanisms, the heat absorption block below the rotary shaft can cool the substrate by absorbing heat, and the heat absorption block above carries the heat outside the shell through airflow generated by the heat dissipationmechanisms. In this way, it is convenient to continuously cool the substrate by means of heat absorption, a good heat-dissipating cooling effect of equipment is guaranteed, the service life of the beads is prolonged, and the practicability of the equipment is improved.