NOVELTY - Producing solar energy heat insulating material, comprises adding polyether, silicon oil, foam stabilizer, catalyst and auxiliary agent and mica into a material storage tank, and stirring the mixture to form mixed material, adding 1,1,1,3,3-pentafluoropropane with water to form material C, adding the material A with material C, carrying out static pre-mixing process to the mixture to form mixed material B, and placing the mixed material B into a white material tank, adding isocyanate into a black material tank, carrying out high speed collision process to the mixed material B and isocyanate.    USE - The method is useful for producing solar energy heat insulating material (claimed).    ADVANTAGE - The method allows simple and convenient preparation of the solar energy heat insulating material in an environmentally-friendly manner.    DETAILED DESCRIPTION - Producing solar energy heat insulating material, comprises: (a) adding 89-91.5% of polyether, 0.5-3% of silicon oil, 0.5-2.5% of foam stabilizer, 1.5-3% of catalyst and 1.5-3% of auxiliary agent and 1-4% of mica (20-40 meshes) into a material storage tank, and stirring the mixture to form mixed material A; (b) adding 1,1,1,3,3-pentafluoropropane with water to form material C in a weight ratio of 3-10:1, adding the material A with material C in a ratio of 1:0.05-0.3, carrying out static pre-mixing process to the mixture to form mixed material B, and placing the mixed material B into a white material tank; and (c) adding isocyanate into a black material tank, carrying out high speed collision process to the mixed material B and isocyanate under at high voltage condition, adding the colloid material into a solar water tank for foaming, and curing the foamed material to obtain end product, where: the temperature of white material tank and black material tank is 20/|4 degrees C; the pressure difference is 100-150 bar; the environment temperature is lower than 20 degrees C; the solidifying temperature is 60/|5 degrees C; the solidifying time is 30/|5 minutes; the environment temperature is higher than 20 degrees C; the solidifying temperature is 45 degrees C plus minus 5 degrees C; the solidifying time is 25 plus minus 5 minutes respectively; and the weight ratio of mixed material B to isocyanate is 1.10-1.40:1.