Calcium formate is used as feed additive, suitable for all kinds of animals, with acidification, mildew, antibacterial and other effects. Calcium formate is a new type of early strength material, which can effectively accelerate the hydration of tricalcium silicate C3S in cement and increase the early strength of cement mortar, but it will not cause corrosion to steel bars and environmental pollution, so it is also widely used in oilfield drilling and cementing.