The invention relates to compound calcium chewable tablets, and in particular, relates to the calcium chewable tablets having a yak bone powder as a main calcium source and containing a pomegranate fruit powder, a sea buckthorn fruit powder and oligofructose. The invention relates to the field of health-care food. The yak bone powder is used as the main calcium source and is rich in phosphorus, magnesium and other mineral elements and high-quality proteins in addition to supplementing calcium, and moreover, the ratio of calcium to phosphorus in the bone power is close to 2:1 which is the optimal ratio for in-vivo absorption of calcium and phosphorus. The product adopts a chewing tablet form, is easy to carry and convenient to use, tastes relatively good, can be swallowed, chewed, sucked or taken after being dispersed with water, and is suitable for young people, adults, pregnant and lactating women and people with swallowing difficulties and poor gastrointestinal functions.