NOVELTY - A conductive paste containing castor oil preparing method involves weighing raw materials into a quartz crucible, and putting into an electric furnace, sintering the mixture, and pouring resulting molten material into cold water quenching, milling, soaking the filtrate in hydrochloric acid solution, and drying organic carrier A, B, and C, and material A, B and C. The material A, material B, material C, silane coupling agent KH560, castor oil, silicone oil, and silicone leveling agent are mixed for 6-8 hours after grinding to obtain finished product.    USE - Method for preparing conductive paste containing castor oil for production of solar cells.    ADVANTAGE - The paste has high cell photoelectric conversion efficiency, and improved conductivity of silver paste.    DETAILED DESCRIPTION - A conductive paste containing castor oil preparing method involves weighing raw materials into a quartz crucible, and putting into an electric furnace, sintering the mixture at 1100-1300 degrees C for 3-4 hours, and in 600-700 degrees C for 4-6 hours, and pouring resulting molten material into cold water quenching, milling, collecting by mesh sieve with 1-5 mu m glass powder, 10-15 mu m and 20-25 mu m frit glass frit, soaking the filtrate in 8-11% hydrochloric acid solution for 1-2 hours, washing with deionized water, and drying of various glass frit particle, where the glass frit from the raw materials is 11.3-15.5 pts. wt. bismuth trioxide, 9-11 pts. wt. potassium, 8-10 pts. wt. ceria, 6-8 pts. wt. lanthanum oxide, 8-11 pts. wt. silica, 4-6 pts. wt. strontium oxide, 7.5-8.5 pts. wt. copper oxide, 5-7 pts. wt. ash trees, and 5-7 pts. wt. sodium silicate. Organic carrier A is prepared by dissolving organic material with raw materials, where the raw materials are 8-10 pts.wt. bisphenol A type epoxy resin, 30-31 pts.wt. butoxyethyl acetate, and 3-5 pts.wt. ethyl. Organic carrier material B is prepared by dissolving the raw materials comprising 8-10 pts.wt. C5 petroleum resin, 14-16 pts.wt. propylene glycol monobutyl ether, and 10-15 pts.wt. ethylene glycol phenyl, followed by preparing carrier C by using the raw materials comprising 10-12 pts.wt. ethyl cellulose, 27-30 pts.wt. ethylene glycol phenyl ether, 3-5 pts.wt. propylene glycol monobutyl ether, and 1-2 pts.wt. silver acetylacetonate. The glass powder is added to the organic carrier A, stirred for 20-30 minutes and mixing 6-10 mu m silver, 30-60nm silver, 61-90 nm silver, Feng powder, fumed silica, 3-5 hours to obtain material A, where the material A is composed of 6-10 mu m silver, 30-60 nm -18,61-90 nm silver, 1-5 mu m 10-11 glass frit, 28-33 pts.wt. organic vehicle A, 1-2 pts.wt. zinc, and 2-3 pts.wt. fumed silica. The obtained glass powder is added to the organic carrier B, stirred, and 1-5 mu m aluminum, 30-60 nm aluminum are mixed for 2-3 hours, to obtain material B, where the material B is composed of 1-90 nm aluminum, 61-90 nm 8-10, 8-12 20-25 mu m glass frit, and 29-32 pts.wt. organic vehicle B. The glass powder is added to the organic carrier C, the mixture is stirred for 30-40 minutes and copper, 30-60 nm powder is added, and mixed for 2-3 hours, to obtain material C, where the material C is composed of 6-10 mu m 50-55 pts.wt. copper,30-60 nm, 5-10 pts.wt. copper powder,10-15 mu m 2-6 pts.wt. frit and 35-38 pts.wt. organic carrier C. The 60-65 pts.wt. material A, 18-21 pts.wt. material B, 13-17 pts.wt. material C, 2-3 pts.wt. silane coupling agent KH560, 0.7-1.5 pts.wt. castor oil, 2-4 pts.wt. silicone oil, and 2-4 pts.wt. silicone leveling agent are mixed for 6-8 hours after grinding, over 300-400 mesh sieve to obtain finished product.