The invention provides a composite spring member and a vertical vibration isolation device comprising composite spring members. The composite spring member comprises a spring, a supporting seat, a lower steel jacket and at least two dampers, and the vertical vibration isolation device comprises an upper top plate, a lower bottom plate and the plurality of composite spring members; the lower bottomplate is arranged on a foundation; the multiple composite spring members are uniformly fixed between the upper top plate and the lower bottom plate; and electrical equipment/a measuring instrument isarranged on the upper top plate, the vibration isolation effect is effectively improved, and the vibration isolation efficiency is greatly improved. According to the vertical vibration isolation device, vibration isolation can be effectively carried out on vertical vibration, so that the electrical equipment/measuring instrument is effectively protected, the degree of damage to the equipment or the instrument is greatly reduced, the stability of the vertical vibration isolation device in the use process is increased, when the vibration occurs, because the springs have good vertical linear elasticity, the springs stretch and contract to generate a part of energy dissipation damping, the vertical vibration isolation effect is achieved, and a reset function is achieved.