A locker structure is disclosed. The structure comprises a housing, latch, bolt, sliding member triggering rod, positioned within the housing, wherein the sliding member has a bottom edge provided with a slot holding a spring and a steel bead such that the sliding member moves to urge at the bolt or disconnected from the bolt form a locking state and the handle cannot be opened, or open the locker via an external handle, the sliding member is provided with a securing hole to lock with a body plate having a vertical long slot, and a spring and steel beads are provided between the plate body and the sliding member such that the plate body can be triggered to slide up and down by means of the long hole so as to change the urging position of the triggering rod and the triangular latch can change into different position adaptable to door opening at the left and right side.