The invention discloses an automatic box pressing packing machine relying on duckbill type tape cutting. The automatic box pressing packing machine structurally includes a tape sticking structure, a paper box capper, a paper box conveying system, a lifting adjustment frame, a control panel, a packing machine support frame, a paper box locator, the packing machine support frame is horizontally mounted on the ground, the paper box conveying system and the packing machine support frame are fixed together by bolts, a tape cutting mechanism is mounted in the automatic box pressing packing machine,after tape bonding is completed, the tape is smoothed before tape cutting to avoid the occurrence of wrinkles of the tape during the tape cutting o further affect the firmness of tape fitting; at thesame time, after the tape cutting is completed, the remaining tape on the surface of a tape cutter is cleaned by a remaining tape cleaning device, integrity when the tape is cut is effectively guaranteed, the situation that the tape is broken during cutting caused by the remaining tape is avoided, and the bonding effect of the tape of the packing machine is improved.