Peking man's head retains the characteristics of an ape, which is still ape-like, with thick eyebrows, a flat nose, a prominent mouth and no obvious depression on his forehead. Cavemen are basically the same as modern people, and their physique and appearance have basically deviated from the original characteristics of apes. Its skull has the appearance of modern people, with a high forehead, a thin brow bone, a backward mouth and beak, a obviously low forehead and a thin skull, and its brain capacity is consistent with the average level of modern people. Is the earliest modern people.