Abstract: Hanging hook including a hook section, a latch member, a spring, a restricting column, a ring body and a C-shaped latch ring. The hook section has a stem body a lower end of which is formed with an annular stop section. One side of the stop section is cut with a restricting split. The other side of the stop section is provided with a downward extending hook. An upper end of the stem body is pivotally connected with the ring body. An upper side of the latch member is formed with a receiving hole. A bottom face of the receiving hole is formed with a through hole. One side of the latch member is formed with a downward extending latch arm. A lower side of the restricting column is provided with a small diameter fitting post. A stop face is defined between the small diameter section and the large diameter section of the restricting column. The restricting column is formed with a central passage.