The invention discloses a rotationally symmetric polarization hollow laser device with high polarization purity and an adjustable polarization direction. The rotationally symmetric polarization hollowlaser device comprises a negative conical mirror (1), a positive conical mirror (2), a laser gain medium (3), a plane reflector (4), an optically active crystal positive cone (7) and an optically active crystal negative cone (8) which are sequentially arranged, wherein a coupling optical system (5) and a semiconductor laser array (6) are arranged below the plane reflector (4); and the laser gainmedium (3), the positive conical mirror (2), the negative conical mirror (1), the optically active crystal positive cone (7) and the optically active crystal negative cone (8) form a laser resonant cavity, the right end surface of the laser gain medium (3) is an input mirror of the laser resonant cavity, and the optically active crystal negative cone (8) serves as an output coupling mirror of thelaser resonant cavity. The rotationally symmetric polarization hollow laser device enables the light intensity center of a cross section of an output beam of the laser device to have large dark spot size, and the polarization distribution is rotationally symmetric and the polarization direction is continuously adjustable, thereby improving the polarization purity and beam quality of the hollow laser beam.