The SMC composite material molding process produces glass fiber reinforced plastic cooling tower shells, which are particularly suitable for the manufacture of small cooling tower shells such as 3T, 5T, 8T, and other fiberglass cooling tower shells of different tonnages. SMC composite materials are used to manufacture the shell of FRP cooling tower, and the combined FRP shell structure is generally adopted. This not only reduces the difficulty of pre-mould investment and manufacturing, but also facilitates modular combination. The shell of SMC fiberglass cooling tower has good strength, light weight, convenient transportation and installation; convenient operation, easy maintenance and long service life.