Fire pumps are imported from overseas. They are classified into different types according to different classification methods. With its characteristics of full sealing, no leakage and corrosion resistance, they are widely used in environmental protection, water treatment, fire protection and other departments to pump various liquids. The ideal pumps for leak-free and pollution-free civilized workshops and civilized factories are similar to the pumps used in fire protection systems, except that the lift and flow are different. The selection basis of fire pumps should be considered from five aspects according to the process flow and water supply and drainage requirements.