Children’s joint ringing is not necessarily calcium deficiency, many children’s joint ringing is normal physiological ringing, this is because the ligaments around the joints of the children are relatively weak, the joint fossa is relatively shallow, the ligaments around the laxity, and the quality of the bone is also relatively soft, and there is a lot of cartilage in the epiphyses of the long bones, joints to do the active flexion and extension activities will appear similar to the physiological ringing, and there is no pain or any other symptoms. As children grow older, the ligaments around the joints will become stronger and stronger, and the muscles will also become very developed, so this physiological joint popping will gradually disappear. Children’s growth and development process should be appropriate to be supplemented with calcium, because through food supplementation can be supplemented about 400-500mg a day, while the normal amount of calcium needed for children’s growth and development is more than 1,000mg, so in addition to drinking milk should also be appropriate to be supplemented with calcium tablets, for children’s growth and development will be better.