The invention discloses a laser for generating high-power axisymmetric polarized light, which comprises a total-reflection mirror, an output mirror, a laser working medium and a pumping source, wherein the laser working medium is located on all folding arms perpendicular to the total-reflection mirror; the pumping source is a radio frequency semiconductor laser or a flash lamp pumping source. Thelaser is characterized by also comprising 4*N turning mirrors, N equals to 1, 2 and 3, and the centers of the 4*N turning mirrors are all located on the optical axis of a resonator, wherein the normal lines of 2*N turning mirrors are parallel to the meridian plane, and an included angle between the normal lines of two adjacent turning mirrors is 90 DEG; and the normal lines of the rest 2*N turning mirrors are parallel to the sagittal plane, an included angle between the normal lines of the rest two adjacent turning mirrors is also 90 DEG, and the included angles between the normal lines of the 4*N turning mirrors and the optical axis are 45 DEG. The total-reflection mirror is a medium grating mirror or an inner axial-cone metal grating mirror. The laser provided by the invention has the characteristics of simple structure, high output axisymmetric polarized light power, high degree of polarization, good beam quality and the like.