A mosquito killer lamp comprises a lamp base (1), an illumination component (2), a mosquito killer device (3), a connection base (4), and a circuit board arranged in the lamp base (1) and comprising an illumination control circuit board (51) and a mosquito killer control circuit board (52). The illumination component (2) is arranged at a bottom of the connection base (4), and electrically connected to the illumination control circuit board (51). The mosquito killer device (3) is arranged in the connection base (4), and electrically connected to the mosquito killer control circuit board (52). The mosquito killer lamp can replace a conventional lamp for use in an original circuit without making any change to the original circuit and switch control, while having functions of killing mosquitos and lighting.
