A series of energetic salts （5-11） were synthesized by reacting polyamino-fused heterocyclic 4，7-diaminopyridazino［4，5-c］furoxan （4） with nitrogen-rich energetic acids including NTO or some other high-nitrogen nitroamino derivatives. The structures of 5-11 were characterized by nuclear magnetic resonance （NMR） spectroscopy， elemental analysis and infrared spectroscopy. In addition， the ¹⁵N NMR spectrum of 6 was measured and assignedbased on the quantum calculations. The crystal structure of 9 was also confirmed by single crystal X-ray diffraction. The detonation properties of these compounds （5-11） were calculated by Explo5 （version 6.05.02） software， and the impact and friction sensitivities were also measured. Among them， compound 5 exhibits good detonation performances （D_v： 8816 m·s^-1， P： 32.1 GPa） and low sensitivities（IS： 15 J， FS： 200 N）.