A novel TEA CO2 laser with high single pulse power and high repetive frequency was developed to fulfill the need of laser propulsion and the optoelectric countermeasures. The technique problems such as quick charging of high voltage capacitor, uniform discharge in high pressure large aperture zone, uniform flow of high pressure gas, and laser resonator, high energy pulse output and high repetition pulse output, were solved by applications of ultraviolet (UV) preionization, two-circuit series and parallel discharge structure of graphite Ernst electrode, folded resonator that embodies super-thin water-cooled non-deforming mirror, closed circle direct cooling system of double loop and high-voltage high-current switch power supply. The highest pulse energy is 92 J, pulse repetition is 35 Hz, the divergence angle of output laser is 1.4 mrad, the stability of pulse energy is 0.8%, and the average output power is more than 3000 W.