The invention discloses a method for printing a printing layer of a polyester fabric by using improved raw materials. The method comprises the following steps: according to the shape and the size of the printing layer which is required to be prepared, forming a cavity of which the shape and the size are the same with those of the printing layer; then filling prepared liquid in the cavity; maintaining for 300 seconds at the temperature of 150 DEG C; then naturally cooling for 300 seconds to obtain the printing layer; and uniformly smearing adhesive on the printing layer according to the size of the printing layer to form an adhesive layer, and then fixedly connecting the printing layer to the layer of the polyester fabric by the adhesive layer. The circumstances that the printing layer cannot be formed directly, follow-up methods including adhesion and adjustment are required, in the period of adhesion, the adhesive is spread out frequently, the printing layer always cracks, the adhesive has black spots and is deteriorated, and due to removal after adjustment, the cost is increased are avoided.