The invention discloses a manufacturing method of composite packages, which comprises the following steps of providing a surface layer and a woven bag; compounding and connecting the surface layer to the woven bag through a filming procedure in the range of 230 DEG C to 240 DEG C, wherein filming materials used in the filming procedure comprises modified polypropylene and special polyethylene for filming, and the polypropylene contains a molecular weight regulator and other assistants; thus, the melt index of the filming materials is improved so as to improve the fluidity, promote to film at lower temperature, flatten the surfaces of the packages and improve the anti-break capability of the packages.