Solubility is an important parameter for the crystallization of molecular perovskite energetic materials （H₆N₂H₁₄）［NH₄（ClO₄）₃］（DAP-4）. In this work， the dissolution behaviors of DAP-4 at different temperatures （288-323 K） and in different solvents （ethanol， ethyl acetate， formic acid， deionized water， acetone， cyclohexane， methanol， acetonitrile， n-propanol） were studied by the gravimetric method. The dissolution models were established by the Apelblat equation and the λh equation， respectively. Meanwhile， the dissolution thermodynamic parameters （ΔH_d， ΔS_d， ΔG_d） were obtained by Van’t Hoff equation based on the thermodynamic principle of solid-liquid equilibrium. Results show that the solubility of DAP-4 is the largest in water and the smallest in ethyl acetate， which are increased with the increasing of temperature in different solvents. The fitting result of dissolution model from the Apleblat equation is better than that of the λh equation. Positive values of ΔH_d， ΔS_d， and ΔG_d indicate that the dissolving process of DAP-4 are non-spontaneous endothermic.