The invention relates to the technical field of office tables, in particular to an office table connecting buckle assembly. The office table connecting buckle assembly comprises a side baffle plate, afront baffle plate, a table board, a mounting block and a connecting buckle assembly, wherein the connecting buckle assembly comprises a supporting part, an elastic part, a blocking part, an arc-shaped slot and a guide slot. The office table connecting buckle assembly has the beneficial effects that: a pivotal shaft is arranged, and the pivotal shaft directly passes through the guide slot for being blocked into the arc-shaped slot while the table board is assembled; under blocking of the blocking part, the pivotal shaft is limited and mounted on the side baffle plate, so that the whole mounting operation process is simple and convenient in operation, and mounting efficiency is higher; and meanwhile, the office table connecting buckle assembly is relatively simple in structure, and is relatively low in manufacturing cost; besides, a file box is additionally arranged, and the file box is used for placing a file folder, so that the file folder does not occupy relative much space of the office table, and therefore, orderliness and aesthetic sense of the office table are improved, and a space utilization rate is relatively high.