ProMerc-100 is a point-of-sales terminal with facial recognition technology used in cafeteria management. It has dual 11.6’’ touch displays, runs Android OS. It has a well-designed and intuitive interface and supports different consumption patterns, namely, fixed value mode (fixed amount per transaction), commodity mode, amount mode (calculation mode), counting mode, and offline mode.The system can be connected to the Internet through TCP / IP or WiFi, and can be connected to small ticket printers. The system can be integrated with small programs to realize functions such as recharging and ordering meals.Through facial recognition and ID/MF card verification, it can automatically and accurately deducts fees and settle accounts, smartly improving dining experience, dining settlement efficiency, and making consumption management more convenient and intelligent.