A punching training device includes a base, a barrel, and a punching member. The base includes an upper shell and a lower shell made of soft material. The base is formed with a cavity and defines a vertical central axis wherein the cavity is located at the central axis. The lower shell has a convex cambered face at the bottom thereof. The upper shell has a connecting portion at the top thereof. The barrel has a shape corresponding to the cavity and is received in the cavity. The punching member is disposed on the connecting portion and extends upward.