The invention discloses an intelligent solar street lamp with good heat dissipation. The intelligent solar street lamp comprises a lamp pole, supporting rods are installed on the two sides of the upper portion of the lamp pole through screws, a protective sleeve is fixedly installed at the end, away from the lamp pole, of each supporting rod, and a limiting disc is installed at the bottom of each protective sleeve through screws so that a lamp body is conveniently limited in the limiting disc; and an annular water pipe is fixedly installed on the lower portion of the inner wall of the protective sleeve, the lamp body can be conveniently limited, meanwhile, cooling and heat dissipation can be performed on the lamp body, the lamp body is not prone to being damaged, heat dissipation through holes are formed in the outer wall of the lower portion of the protective sleeve, heat dissipation can be performed on the lamp body conveniently, and a water collecting hopper is fixedly installed on the top of the protective sleeve in a penetrating connection mode. And rainwater can be conveniently collected in the water collecting hopper, a filter screen disc is in threaded connection with the interior of the heat dissipation through holes and the interior of the water collection hopper, impurities can be filtered conveniently, the impurities are not prone to entering the interior of the protective sleeve, and meanwhile the impurities are prevented from blocking the annular water pipe and the water conveying pipe.