The invention discloses a multi-wedge-surface drill rod. The multi-wedge-surface drill rod comprises a rod body, a connecting head, a connecting tail, a locking wedge block and a locking nut, whereinthe connecting head and the connecting tail are connected to the two ends of the rod body, the connecting head is provided with an axial rectangular pyramid table, the connecting tail is provided witha rectangular pyramid hollow, and a synchronous pulley is arranged on the outer circle surface of the locking nut. Through coaxial matching of the rectangular pyramid table and the rectangular pyramid hollow, the drill rod can be rapidly assembled and disassembled, and the advantages of being large in bearing torque, long in service life, easy to disassemble, low in cost and the like are achieved. Drill rod automatic assembling and disassembling equipment applied to the multi-wedge-surface drill rod is arranged on one side of a drilling machine and comprises a locking nut assembling and disassembling mechanism, a locking wedge block assembling and disassembling mechanism, a drill rod assembling and disassembling mechanism and a control system. According to the drill rod automatic assembling and disassembling equipment, the automation degree is high, automatic assembling and disassembling of the drill rod are realized, the labor intensity of operators is greatly reduced, and the working efficiency is improved; and a drill rod circulation box of the drill rod automatic assembling and disassembling equipment is large in capacity, and the problems of placing, carrying and transportingof the drill rod are solved at the same time.