Automobile seat angle adjuster structure and automobile seat thereof

The utility model discloses an automobile seat angle adjuster structure and an automobile seat thereof. The automobile seat angle adjuster structure comprises a supporting seat, a sector gear, an inclined lifting block and an inclined moving block. A first rotating arm is arranged in the supporting seat, and the top of the first rotating arm extends to the outer side of the supporting seat; the sector gear is arranged on the surface of the first rotating arm; according to the automobile seat, meshing with the sector gear is canceled through the teeth, the automobile seat drives the first rotating arm and the sector gear to rotate with the rotating shaft as the center, and the automobile seat, the second rotating arm and the first rotating arm are adjusted; the inclined lifting block is pushed through the inclined moving block, and teeth are meshed with the sector gear, so that fixation is formed; the lifting plate and the inclined lifting block are moved downwards through the pulling force of a second spring,