Manufacturing mold of structural surface model in direct shear test

The invention relates to a manufacturing mold of a structural surface model in a direct shear test, which comprises an upper disk mold, a lower disk mold and a positioning pin, wherein the upper disk mold is positioned on the lower disk mold; the positioning pin for centering the upper disk mold and the lower disk mold is arranged on the bottom surface of a side plate of the upper disk mold; the upper disk mold comprises an upper front side plate, an upper left side plate, an upper back side plate and an upper right side plate; the cavity shape formed by the upper disk mold is matched with the structural surface model of the upper disk to be manufactured; the upper front side plate is fixedly connected with the upper left side plate and the upper right side plate, and the upper back side plate is fixedly connected with the upper left side plate and the upper right side plate; the lower disk mold comprises a lower front side plate, a lower left side plate, a lower back side plate and a lower right side plate;