The synthesis methods of furoxan derivatives were reviewed. The preparation methods of 3-amino-4-azidocarboxyl-furoxan as the precursor of furoxan derivatives,were summarized as well as the feasibility of all these methods. The synthesis ways of phenyl furoxan derivatives,i.e. pyrogenation of azido and o-nitro group in benzene ring,oxidation of substituted o-nitroaniline,oxidation of the CC double bond bonding with phenyl directly were also described.