The invention relates to a vibration solidification method of lost mold casting, pertaining to the precision casting field, which aims at fining the organization of castings of the lost mold casting, reducing the cost and enhancing the performance of castings. The invention comprises three steps of: production of foamy mold, imbedding the foamy mold into a casting box for filling and compacting sand as well as casting of molten metal; the invention is characterized in that: before and during the period of casting molten metal, during the solidification period, or the solidification period after the period of casting molten metal, casting box filled with foamy mold and scattered sand is vibrated at the frequency ranging from 10 to 100Hz and the amplitude ranging from 0.1 to 3.0mm, and rotation speed of a vibration motor that drives the vibration is 750 to 3000 rpm, and the vibration is stopped after the solidification of casting is completed. The invention has the advantages of low cost, easy operation and control, obvious fining effect of casting organizations, greatly improving performance and no environmental pollution, which is both suitable for the casting of the lost molds of nonferrous metals components, such as aluminum alloy, magnesium alloy, copper alloy, etc., and is also suitable for the casting of the lost mold of ferrous metal components, such as cast iron, cast steel and so on.