The invention relates to a cleaning device for a shower room. A plurality of sucking discs are arranged at the lower end of a casing; a fixed rod is arranged at the upper part of the casing; the upper end of a sliding rod is arranged on the fixed rod in a sliding manner by a first sleeve; the lower end of the sliding rod is arranged in a guide rail groove in the lower part of the casing in the sliding manner; a scrubbing plate is arranged on the first sleeve; the middle part of the sliding rod is sleeved with a second sleeve; the second sleeve is connected with an ear-shaped block; the ear-shaped block is connected with a rotating rod; a third sleeve is fixedly arranged in the casing; one end of a rotating shaft is in threaded connection with the third sleeve, and penetrates out of the third sleeve to be connected with a connection shaft outside the casing; the other end of the rotating shaft is connected with the middle part of the rotating rod; a fixed block fixedly connected with the casing is arranged outside the connection shaft; and a handle is arranged on the connection shaft. The cleaning device for the shower room is simple in structure, practical, convenient to use, high in cleaning efficiency, and capable of being used for cleaning mirrors, table-boards, tile wall surfaces and the like in the shower room, and particularly in cold winter, the cleaning device can avoid hands of a user from direct contact with duster cloth and wall surfaces, so that the daily use by people is convenient.