The present invention belongs to the field of smart street lamps, especially a combined smart street lamp. Aiming at the difficulty of erection caused by the inability to assemble and install the existing street lamp support rods, the high cost of use and the problems of a large number of insects around the street lamps at night in summer, the following proposals are now proposed : Including a support mechanism and a smart street lamp main body, the support mechanism includes a plurality of support rods, the top of the support rods is fixedly connected with a first flange, and the bottom of the support rods is fixedly connected with a second flange, the smart street lamp main body An air jet pipe is fixedly installed on the light frame of the smart street lamp, and a third flange is fixed on the bottom of the light frame of the main body of the smart street lamp, and an outer ring is fixedly sleeved on the outer side of the support rod at the top, and one side of the outer ring is fixed Installed with a sealed box, the invention realizes the combined installation of the support rods, reduces the difficulty of erecting the street lamp, and can effectively drive away insects around the street lamp, and at the same time facilitates the replacement of the mothballs, and has strong practicability.