Preparation method of high-purity sodium ozagrel

The invention relates to a preparation method of high-purity sodium ozagrel, which comprises the following steps: dissolving ozagrel in a sodium hydroxide solution, filtering, concentrating, and carrying out vacuum filtration to obtain the high-purity sodium ozagrel. The method is simple to operate, and has the advantages of low cost and simple equipment requirements; and the produced sodium ozagrel has the advantages of high concentration and favorable clarity.