The invention discloses an integral pouring molding construction method for reinforced concrete columns. The integral pouring molding construction method for the reinforced concrete column comprises the steps that a column reinforcing cage is composed of a plurality of stirrups and column reinforcing cage vertical reinforced bars, outer-side formworks are fixed by forming outer threads in the ends of framework reinforced bars of the stirrups forming the column reinforcing cage and enabling the outer threads to penetrate through the formworks, all the side face formworks are fixed separately to form an integral formwork splicing structure with the self-balancing performance, and the spliced integral formwork structure is conveniently lifted to a construction site for construction. According to the construction method, the site construction procedures of the concrete columns are simplified, the structural integrality is good, and the construction method is applied to the building construction field.