The invention relates to a fixed intelligent mosquito catching and killing system which is placed at a corner position of a room. The fixed intelligent mosquito catching and killing system comprises a fixing mechanism, a lure light source, a mosquito killing device, a positioning device and an AT89C51 single chip microcomputer, wherein the fixing mechanism fixes the catching and killing system fixed at the corner position of the room, the lure light source is used for luring mosquitoes, the mosquito killing device is used for catching and killing the mosquitoes, the positioning device adopts an image acquisition and image processing mode to determine a reference position, away from the mosquito killing device, of the mosquitoes, the AT89C51 single chip microcomputer is connected with the mosquito killing device and the positioning device respectively, and the catching and killing operation of the mosquito killing device is controlled based on the reference position. By adopting the fixed intelligent mosquito catching and killing system, automatic mosquito catching and killing at all the corners in the room can be achieved in an effective luring mode.