The invention discloses a method for improving the mounting precision of a concrete column with multiple bracket steel pipes. According to the method, when brackets are manufactured, the twisting tolerance of the brackets is strictly controlled, and the twisting tolerance of the brackets is controlled to be the minimum. When the brackets and the steel pipe column are welded, the mounting angles ofthe brackets and the distance between the adjacent brackets need to be rechecked at the same time. When the steel pipe column is installed, the angle deviation of all the brackets on the steel pipe column is minimized by adopting a multi-bracket coordinate fitting correction method. According to the method, the one-time installation precision of the steel pipe concrete column can be improved, reworking is reduced, and the installation cost is reduced. The method powerfully advances the construction period of a whole engineering project, facilitates compression of the construction period of acritical path and improves the engineering construction quality.