Calcium carbide is an important chemical raw material used in steel smelting, fertilizer production, petroleum processing, rubber production, glass manufacturing and other industrial fields. Its main role is as a raw material for reducing agents, dehydrating agents, desulfurizers and calcium dihydroxide. Calcium carbide can be used as a reducing agent to directly reduce iron extracted from iron ore in iron and steel smelting. In fertilizer production, it can be used as a dehydrating agent to help produce anhydrous ammonia and as a desulfurizing agent to remove sulfur from waste gases. In rubber production, it can be used as an accelerant to help rubber cure faster. In glass making, it can be used as a raw material for calcium dihydroxide. Calcium carbide production and use of the environment and human health have potential hazards, so it should be paid attention to its correct use and treatment. For example, in the production process should be strictly controlled emissions and wastewater treatment, to avoid pollution and harm to the environment. In the use of the process should also pay attention to safety, in order to prevent personal injury. In the future industrial application and environmental protection, calcium carbide development and utilization is very important, its research and development will make great contributions to human development and environmental protection.