The invention relates to an automatic round pipe punching machine capable of being applied to a production line. The automatic round pipe punching machine capable of being applied to the production line comprises a platform, a punching device, a locating device and a material fetching device. The round pipe punching machine capable of being applied to the production line is characterized in that the platform comprises a support, two supporting plates, a hopper, a feeding steel tube storage support and a discharging steel tube storage support, the support comprises a middle portion, a left portion and a right portion, the left portion and the right portion are symmetrical about the middle portion, the two supporting plates are fixed to the upper surface of the left portion and the right portion correspondingly, the two steel tube storage supports are fixed to the portions, below the two supporting plates, of the support, the left side of each steel tube storage support is lower than the right side of the steel tube storage support, a plurality of gaps are formed in the corresponding positions of the inner sides of each steel tube storage support, the steel tube storage support located on the right side is the feeding steel tube storage support, the steel tube storage support on the left side is the discharging steel tube storage support, the included angle between the feeding steel tube storage support and the horizontal plane is beta, the included angle between the discharging steel tube storage support and the horizontal plane is alpha, and the angle beta and the angle alpha can guarantee that steel tubes can roll off from left to right through the gravity on the feeding steel tube storage support and the discharging steel tube storage support.