Environment-friendly high-strength packaging box

The invention discloses an environment-friendly high-strength packaging box. The packaging box comprises an adjusting mechanism and a stacking mechanism; the adjusting mechanism comprises a casing; placing grooves are formed in the upper surfaces of the four walls of the casing; supporting mechanisms are arranged in the placing grooves in an arrayed manner; transverse partition plates and longitudinal partition plates are placed in the casing; first rectangular grooves are distributed in the upper surfaces of the transverse partition plates in an arrayed manner; second rectangular grooves aredistributed in the bottom sides of the longitudinal partition plates in an arrayed manner; the first rectangular grooves and the second rectangular grooves are correspondingly connected in a sleevingmanner; the stacking mechanism comprises an annular supporting block; hand buckles are arranged on the left side and the right side of the annular supporting block; and a damping mechanism is arrangedin the position, located i