The utility model discloses a double weld leg contact welding head for a high frequency straight welded pipe production line. The welding head comprises two units which are symmetrical left and right, each unit comprises a connecting block and a connecting lug base which are fixedly connected in sequence from top to bottom, a rear weld leg lug base and a front weld leg lug base are arranged on the outer side of each connecting lug base in sequence, each connecting lug base, the corresponding rear weld leg lug base and the corresponding front weld leg lug base are connected through a pin shaft, a single rear weld leg body is fixedly connected to the front of each rear weld leg lug base, a single front weld leg body is fixedly connected to the front of each front weld leg lug base, an electrode block is fixed to the bottom of each single front weld leg body, an electrode block is fixed to the bottom of each single rear weld leg body, the electrode blocks at the bottoms of the single front weld leg bodies are located in front of the electrode blocks at the bottoms of the single rear weld leg bodies, the distance between the electrode blocks at the bottoms of the single front weld leg bodies and the electrode blocks at the bottoms of the single rear weld leg bodies is equal to the wavelength of the wavy edge of a plate, and the rear end of each rear weld leg lug base and the rear end of the corresponding front weld leg lug base are connected through a vertically arranged tension spring and a connecting block. Through the double weld leg contact welding head, the phenomenon that because of ignition of weld joints, burning pits are formed is avoided, and the quality of the weld joints is guaranteed.