The invention discloses a processing method of ginkgo puffing powder. Fruit nuts are used as main raw materials to be sequentially subjected to pretreatment, drying crushing, ammonium bicarbonate addition, ginkgo leaf ethanol extract and citric acid proportioning, water preparation, extrusion puffing, hot air drying and crushing and cooling operation. The stability of active substances in a product can be effectively improved; the ginkgolic acid is degraded to a great degree; the quality performance and the safety level of the obtained product are greatly improved; the nutrition value of the product is high; the powder particles are uniform; the product has luster; the special fragrance of ginkgo fruit is realized; the brewing and eating are convenient; the taste is pure, fine and smooth;the digestive absorption is easy; in addition, the production efficiency of the method is high; the cost is low; the waste is little; no waste materials exist.