Pelvis inner side wall locking plate and pelvis fixing device

The invention relates to the technical field of medical apparatuses and instruments, in particular to a pelvis inner side wall locking plate and a pelvis fixing device. The pelvis inner side wall locking plate comprises an ilium plate and an ischium plate connected with each other, the end, away from the ilium plate, of the ischium plate obliquely and outwards extends to form an angular shape, theend, away from the ischium plate, of the ilium plate outwards extends, the contact face of the bone face of the ilium plate is matched with the arcuate line of the ilium in shape, and the ilium plateis provided with at least two locking holes for connection between the ilium plate and the inner side wall of the pelvis. The problem is solved that in the prior art, when an internal fixation type is adopted for acetabulum fracture, a locking part is difficult to place and possibly enters the articular cavity or pelvic cavity. In addition, as much as possible, fracture areas can be considered only by adopting one locking