This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, signs, packaging, transportation and storage requirements of large hydraulic hoists. This standard is applicable to the opening and closing of large gates in water conservancy and hydropower projects, with a single lifting point, vertical installation, and piston structure hydraulic hoist (hereinafter referred to as hoist) with a door opening force or holding force greater than or equal to 1000kN.