In this paper,the evolution of several analytical indicators and the low field nuclear magnetic resonance(LF-NMR) T2 relaxation characteristics of sunflower oil stored at 25，65 ℃,respectively,were investigated.And the correlation model between LF-NMR results and the analytical indicators was established and experimentally verified.The results indicated that ,when stored at 65 ℃,the analytical indicators,including peroxide value(PV),conjugated dienes(K232),conjugated tienes(K270),p-anisidine value(p-AV),TPC content and the LF-NMR T2 peak area(S21，S22) all increased exponentially(r2＞0.93),while the S23 and the single component relaxation time(T2W) decreased exponentially as the storage time was prolonged(r2＞0.98).The multiple regression analysis results showed that the correlation model between LF-NMR results and the analytical indicators could be well established and successfully verified(r2＞0.94).When stored at 25 ℃,although the analytical indicators and the LF-NMR results changed less than those of 65 ℃,the PV，K232，TPC content increased linearly as the time was prolonged(r2＞0.95),while no obvious relationship could be found between the K270，p-AV，IV or T2 relaxation characteristics and the storage time.Meanwhile,the correlation of the model between LF-NMR results and the analytical indicators was also poor.