The utility model discloses an automatic operation system of a drilling tubular column. The automatic operation system is mainly composed of an automatic catwalk machine, a drill stand manipulator, a power slip, an iron roughneck, a power elevator, a racking platform discharge pipe manipulator, a top drive, a winch, a driller integrated control system and the like, and the automatic operation of drilling operation of enabling the drilling tubular column to get on and down a drill stand, drilling, trip-out, going down, vertically arranging the tubular column and the like can be realized by matching the automatic operation system to a petroleum drilling machine. According to the automatic operation system, the degree of automation of a drilling machine can be improved, and the problems of heavy labor intensity, high risk and low efficiency due to high altitude and multi-man cooperative operation in the existing operation way of the drilling tubular column can be solved; the defects that the local labor intensity can be reduced by single or several automatic devices supported by the drilling machine, workers cannot be reduced and the operating efficiency cannot be promoted can be overcome.