Calcium formate for feed is an efficient, safe, and environmentally friendly organic calcium supplement with broad application prospects in animal feed. However, attention should also be paid to controlling the amount of additives during use to avoid adverse effects on animals caused by excessive use. Compared with traditional inorganic calcium sources, calcium formate has better bioavailability and lower residual levels, with less environmental pollution. Therefore, adding calcium formate to feed also meets the requirements of sustainable development in modern animal husbandry.