The invention relates to a phosphine temperature-controlled fumigating device for agricultural products of fruits, vegetables, flowers and the like at different temperatures. The phosphine temperature-controlled fumigating device comprises a fumigating bin, a fumigant quantitative feeding unit, a circulating fumigating unit, a temperature control unit, a fumigant concentration monitoring unit, a temperature monitoring unit, a fumigating gas exhaust unit and a control unit, wherein the fumigating bin is used for storing an article to be fumigated; the fumigant quantitative feeding unit is used for feeding medicines into the fumigating bin; the circulating fumigating unit is used for fumigating circulating gas in the bin; the temperature control unit is used for controlling the temperature in the fumigating bin; the fumigant concentration monitoring unit is used for monitoring the concentration in the fumigating process; the temperature monitoring unit is used for monitoring the temperature in the fumigating process; the fumigating gas exhaust unit is used for exhausting waste fumigant; and the control unit is used for automatically controlling. The invention can meet the requirements of mixed gas of phosphine and air, mixed gas of the phosphine and carbon dioxide or mixed gas formed by the phosphine and air-conditioning gas for refreshing and storing the fresh and live agricultural product on normal pressure fumigation at different temperatures and has the advantages of simple and convenient operation, flexible use, excellent control performance and high degree of automation.