Abstract: The normal distributed function and use the item-by-item integral method were introduced in this paper based on the new generation solution geometry model, which will relate the properties of all points in the neighborhood of the binary system representative points to the properties of the multi-component points. The physicochemical properties of the two ternary liquid alloys In-Sn-Zn and Ag-Bi-Sn were calculated by using the modified model, and a good accordance was obtained between the prediction results and reference values, which proves the rationality of the improvement idea.