Abstract: An automatic faucet control device comprising an electromagnetic valve for opening and closing a flow channel of a faucet, a ray emitting means (5) for emitting infrared rays to a target to be detected, a ray receiving means (6) for receiving the infrared rays reflected by the target, a sensing decision means for deciding presence or absence of the target by an output from the ray receiving means (6), and an electromagnetic valve control means for controlling the electromagnetic valve based on a sensing signal from the sensing decision means, wherein the ray emitting means (5) has a first polarization means (7) allowing a polarized light component to be transmitted, and the ray receiving means (6) has a second polarization means (8) for allowing a polarized light component different from the rays transmitted through the first polarization means (7) to be transmitted therethrough.