Disclosed is a mosquito killing illumination device, comprising a housing (1) and a control unit. The housing comprises an illumination part (101) and a mosquito killing part (102), wherein an illumination lamp assembly is arranged in the illumination part (101); and a side wall of the mosquito killing part (102) is provided with a through hole (103) for a mosquito to fly into, and a mosquito enticing lamp (2) and a draught fan (3) are arranged in the mosquito killing part. The control unit controls the operation of the illumination lamp assembly, mosquito enticing lamp (2) and draught fan (3). The illumination device has a good mosquito killing effect and prevents a user from being bitten by a mosquito.