The methods of synthesizing 3-(N-2, 4, 6-trinitrophenyl)-amino-4-nitrofurazan, 3-amino-4-(tetrazole-5-yl) furazan, azotetrazolylfurazan, 3-nitro-4-tetrazolylfurazan and 3-amino-4-(4-cyano-5-amino-1, 2, 3-triazol) furazan were improved. The condition of reaction was mild and the yield of target compounds was increased corresponsively. 3-(N-2, 4, 6-trinitrophenyl)-amino-4-nitrofurazan was synthesized by nucleophilic substitution reaction of 3-amino-4-nitrofurazan and 2, 4, 6-trinitro-chlorobenzene(picrylchloride). 3-Amino-4-(tetrazole-5-yl) furazan was obtained from cycloaddition of sodium azide and 3-amino-4-cyanofurazan. 3-Amino-4-(tetrazole-5-yl) furazan was treated with KMnO₄ as azo coupling reagent or H₂O₂, sodium tungstate and methylsulfonic acid as oxidant to afford azotetrazolylfurazan or 3-nitro-4-tetrazolylfurazan, respectively. 3-Amino-4-(4-cyano-5-amino-1, 2, 3-triazol) furazan was prepared by cycloaddition from 3-amino-4-azidofurazan and malononitrile. The yield of these five compounds was 36.1%, 90.9%, 86.8%, 75.6% and 81.8% respectively. These compounds were characterized by ¹H NMR, ¹³C NMR, IR and MS.