A general anatomic self-locking plate for medial acetabulum includes a left plate and a right plate mirrored with respect to the left plate. The right plate is a one-piece and includes a horizontal plate body and a vertical plate body. The horizontal plate body and the vertical plate body form a T shape. A through-hole is provided on the vertical plate body along a length direction thereof. Hole pathways of screw holes in the horizontal plate body lean downwardly along the free end of the horizontal plate body. The self-locking plate further includes stress bridges, automatic reduction holes and temporary positioning holes. An auxiliary apparatus of an anatomic self-locking plate for medial acetabulum includes a locking sleeve, a screw placing sleeve and a pair of gripping pliers. The right plate has excellent reduction and stable fixation, and is beneficial to accurately fix fractures without shaping and cutting during operation.