Looking at the palm bone age film requires careful observation of the development of the joint bone scale. Before the age of 18, observation of the fingers and metacarpals of children can see that the metacarpals are not fully developed and the structure is not obvious. The gap between the bones of the metacarpals is large and no joints are formed. With gradual maturation, the metacarpals gradually become larger and the bones are closely connected to form joints. The joints of the fingers take longer to mature than the metacarpal bones to close, and bright lines can be seen in the finger joints, which are the epiphyses, an important tissue for the maturation of the fingers, which gradually disappear as they mature and are connected to the finger bones. 18 years old or so can see the fully developed finger bones and metacarpals, so that children usually consume more protein- and calcium-rich foods and fruits and vegetables to meet their body’s developmental needs, and let more Children can play sports outdoors to promote bone development. In conclusion, the development of the epiphysis needs to be observed in the palm bone age film.