PROBLEM TO BE SOLVED: To provide washing equipment for a mucous membrane capable of suppressing leakage of a discharged material, etc. used for washing, and performing washing of a mucous membrane in an oral cavity, etc.SOLUTION: Washing equipment 10 for a mucous membrane includes: a grip 20 a discharge nozzle 30 provided to the leading end of the grip 20 having a discharge port 32 for discharging a material to be discharged for washing and a suction cover 22 which covers the periphery of the discharge port 32 so as to bring the periphery of the discharge port 32 into a negative pressure state, and has a suction port 34 for sucking and removing a discharged material.
