The invention relates to a foot-operated type automatic opening-tightening chip collector which can realize automatic opening tightening of a collecting bag, automatic moving out of the collecting bag, automatic opening and closing of a collector cover and the placement of the collecting bag, and the collecting bag is attached to the collector. The foot-operated type automatic opening-tightening chip collector comprises a chip collector housing, a chip collector inner housing, a chip collector cover, a head end fixed pulley, an auxiliary fixed pulley, a tail end fixed pulley, a direction changing fixed pulley, an opening-closing pedal support frame, a lifting pedal support frame, a rotary pedal support frame, an opening-closing pedal, a lifting pedal, a rotary pedal, a collecting bag groove, a rotary table, a gear, a rack, a shaft, an opening-closing steel wire rope, a rotary steel wire rope and a return spring. According to the foot-operated type automatic opening tightening chip collector, the rotary table can be moved vertically, so that the function of moving the collecting bag out of the chip collector automatically can be realized; the rotary table is rotatable, so that the function of tightening the opening of the collecting bag automatically can be realized; through the steel wire rope pulley mechanism, the function of the opening and closing the chip collector cover automatically can be realized.