The invention discloses a preparation method of embroidery wall fabric based on silk-polyester fabric. The preparation method comprises the steps as follows: (1) an adhesive is applied to the surfaceof polyester fabric, silk is applied to the surface of the adhesive, primary drying is performed, and a primary product is obtained; (2) the primary product is subjected to primary treatment and secondary treatment sequentially, and a treated product is obtained; (3) the surface of the treated product is set and embroidered, and compaction treatment is performed, wherein the temperature of primarytreatment is 35-55 DEG C higher than that of the secondary treatment. The embroidery wall fabric based on silk-polyester fabric has better alternate cooling and heating resistance and is not prone todeformation and warping particularly in actual use after going through alternate change of spring, summer, autumn and winter, and bulging and warping of the wall fabric are greatly reduced. Meanwhile, the preparation method has the advantages that the process is simple and raw materials are easy to obtain.