The invention relates to the technical field of staircases, in particular to a staircase structure convenient to disassemble. The staircase structure convenient to disassemble comprises upright columns, platform beams, ladder beams and inclined struts, and is characterized by further comprising gripping and wrapping clamp grooves; an arc-shaped hole is formed in a plate to form each gripping and wrapping clamp groove, and two ends of each arc-shaped hole are communicate with the edges on the corresponding sides of the corresponding plate to form openings; the rear walls of every two corresponding gripping and wrapping clamp grooves which are transversely and parallelly formed are fixed onto the corresponding upright column to form a group of gripping and wrapping clamp groove components; the upper edge and the lower edge of each ladder beam are respectively connected with inner edges of the corresponding adjacent platform beams by pins. Compared with the prior art, the staircase structure convenient to disassemble has the advantages that the staircase structure no longer needs to be welded when about to be assembled and is easy to mount, accordingly, environmental pollution can be reduced, and labor and materials can be saved; the staircase structure is reliable and is convenient to disassemble; the platform beams, the ladder beams and the inclined struts which are hinged to one another can be reused for other buildings or structures after being disassembled, and accordingly the cost can be saved.