Buffering paper card and buffering packaging box

The utility model relates to the technical field of packaging, and provides a buffering paper card and a buffering packaging box, the buffering paper card comprises a buffering paper card cutting piece, the buffering paper card cutting piece comprises a first buffering plate, a second buffering plate and a third buffering plate which are integrally formed, the first buffering plate is provided with a first pressing line extending in the width direction, and the second buffering plate is provided with a second pressing line extending in the width direction. A first clamping groove and a first limiting notch are formed in the end part in the length direction; a second pressing line extending in the length direction is arranged on the second buffer plate, second clamping grooves are formed in the two ends in the width direction, and first connecting pressing lines extending in the width direction are arranged at the junction of the second buffer plate and the first buffer plate and the junction of the second buf