Abstract: A rolled sheet material dispenser, used for dispensing a sheet material on a reel, includes a box and a clamping assembly. The clamping assembly includes a first clamping member, a second clamping member and at least one elastic member. The first clamping member or/and the second clamping member may be a roller. The roller is pivotally connected to the box through a pair of rolling bearings and adjacent to a dispensing opening. The roller is connected with the elastic member so that the roller can be displaced by an elastic force of the elastic member to a clamping position and can be supported by the rolling bearings to clamp the sheet material stably.