The utility model discloses a composite double-correlation photoelectric sensor and a corresponding security check device. The photoelectric sensor comprises an A-end module and a B-end module, wherein the A-end module and the B-end module respectively comprise a transmitting circuit and a receiving circuit; the transmitting circuit of the A-end module is used for transmitting modulated light to the receiving circuit of the B-end module to form a path of correlation photoelectric detection; the transmitting circuit of the B-end module is used for transmitting modulated light to the receiving circuit of the A-end module to form another path of correlation photoelectric detection; receiving circuits of the A-end module and the B-end module are oppositely arranged, so that the directions of modulated light of the two paths of correlation photoelectric detection are opposite. According to the utility model, the double-channel photoelectric sensing detection requirement of security inspection equipment can be satisfied, and an automatic gain control function, an anti-mutual interference function and a self-test function are realized.