The invention discloses a simple rubber sleeve special for a mop. The simple rubber sleeve comprises an outer rubber sleeve sleeving a mopstick, two fixing columns are arranged at the upper end of theouter rubber sleeve, a first threaded hole is formed in each fixing column, the fixing columns are in threaded connection with a connecting rod, a rotating table is connected to the upper end of theconnecting rod, the rotating table is arranged into a second threaded hole in a fixing base disc, a plug screw is arranged inside the second threaded hole, a third threaded hole is formed in the fixing base disc, a fixing sleeve is arranged inside the third threaded hole, the fixing sleeve is embedded at one end of the mopstick, a protrusion is arranged on the outer wall of the outer rubber sleeve, and a circular baffle is arranged at the lower end of the outer rubber sleeve. The simple rubber sleeve is used on the mop, the phenomenon that the hands slide along the mopstick when the user mopscan be avoided, the installation position of the outer rubber sleeve on the mopstick can be adjusted by changing the length of the connecting rod, and therefore the rubber sleeve is suitable for people of different heights.