An effective organics solution phase change materials (PCMs) with high phase enthalpy change and low onset temperature was developed, which can be applied to store and preserve several kinds of agricultural produces with different optimal storage temperature. Glycine, lysine, sorbitol, proline and glucose were preselected and determined with the differential scanning calorimetry (DSC), and glycine solution was chosen as the main energy storage materials due to its highest phase enthalpy change among these five materials under the same onset temperature. To achieve a lower onset temperature, glycine was matched with 0.1mol/L glycerol solution and 0.1% sodium benzoate was added to extent self-life of PCMs and super-absorbent polymers (SAP) as matrix. The final formula of the organics solution PCMs was 0.4~0.8mol/L glycine, 0.1mol/L glycerol, 0.1% sodium benzoate and water with 0.75%~0.81% SAP as matrix. A series of this organics solution PCMs could be prepared with the change of the concentration of glycine solution, whose phase enthalpy change was 296.4~305.9J/g and onset temperature was -7.3~-5℃. Furthermore, there was almost no supercooling and phase separation phenomenon and it was safe and practical.