The utility model relates to a compact vacuum squatting pan belongs to environmental protection sanitary installation technical field, including vacuum squatting pan body, water booster, pneumatic soil pick -up valve, fluid control solenoid island and stool pot controller, vacuum squatting pan body's rear end is connected through discharge pipeline and water booster, and the water booster is connected with the stool pot controller through fluid control solenoid island, and vacuum squatting pan body's exit end is connected through discharge pipeline and pneumatic soil pick -up valve, and pneumatic soil pick -up valve is connected with fluid control solenoid island, and pneumatic soil pick -up valve is connected through discharge pipeline and filth case. The utility model discloses a compactvacuum squatting pan designs for modular structure, and is small, is convenient for install in the narrow and small application scenario in spaces such as locomotive and passenger train.