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A multipurpose puncher includes a pair of opposed stationary punch units positioned separately on a base, and a movable punch unit mounted slidably between the stationary punch units on the base. A press lever assembly is arranged so that it always associates with the movable punch unit and one of the stationary punch units to form a two-hole puncher while the other of the stationary punch units can be used as a single hole puncher. Furthermore, as desired, the press lever assembly can be adjusted to associate with all of the three punch units to form a three-hole puncher. When the two-hole puncher is formed, the distance between the axes of the punch members can be adjusted to be 78.5 mm. In addition, when the three-hole puncher is formed, the distance between any two adjacent punch members is preferably 108.5 mm.