Male fish was found larger in size than female for all species. Growth rate was higher at early stage of life for male fish and higher in adult for female fish. All species namely S. taeniopterus, N. mesoprion, N. furcosus, N. tambuloides and N. hexodon showed negative allometry according to growth value "b" observation except in N. nematophorus (positive allometry) in different maturity stages. Therefore, this study results can be used to help the fishery managers which can be used for maintain sustainable condition of Nemipteridae fish resources in the Gulf of Thailand and leading to a greater boost in the economy of Thailand.