The hand washing sensor faucet is a device that controls the water flow through a sensor, and is particularly suitable for use in hand washing areas. The user only needs to approach the faucet and the water flow will automatically start. It not only facilitates sanitary operation, but also effectively avoids cross contamination caused by touching the faucet. The hand washing sensor faucet produced by the Chinese faucet factory adopts high-quality sensor technology, has the advantages of water saving, hygiene, and environmental protection, and is suitable for use in public toilets, restaurants, hospitals and other places.