First of all,the characters and producing flue gas desulfurization gypsum were analyzed,the technology about the reusing of flue gas desulfurization gypsum was introduced.Secondly,based on the introduction of the reusing all mainly kinds of solid waste in industry in Tianjin,especially the flue gas desulfurization gypsum,several suggestions about the comprehensive utilization of flue gas desulfurization gypsum was advanced.