Automobile rotating door hinge

The invention discloses an automobile rotating door hinge, which comprises a fixed arm and a rotating arm, wherein the fixed arm is fixedly connected onto a door post of an automobile body; the rotating arm is fixedly connected onto the automobile body; the fixed arm is respectively provided with an arc-shaped roller guide slot and an arc-shaped limit chute; and at least two limit pits are arranged in the limit chute. The rotating arm is provided with a roller mechanism and a limit ball mechanism, wherein the roller mechanism corresponds to the roller guide slot, and the limit ball mechanism corresponds to the limit chute. The roller mechanism and the limit ball mechanism respectively do relative slip in the roller guide slot and the limit chute, and thus, the fixed arm and the rotating arm can be rotatablely and glidingly connected. According to the automobile rotating door hinge, the opening angle of the automobile door is increased to the maximum degree; the opening and closing and limit function of the au