It aims to provide a scientific basis in determining amount of oil in microcapsules by comparing four extraction methods. The amount of cinnamon microencapsulation total oil was extracted and determined by weight loss method， simultaneous distillation-extraction method， ultraviolet spectrophotometry and mixed solvent extraction method. Then the four methods were compared and analyzed. The essential oil recovery percent determined by weight loss method and mixed solvent extraction method were 84.16% and 85.50%， respectively， but the weight loss method was subject to greater experimental errors （12.73%） than mixed solvent extraction method （3.74%）. mixed solvent extraction method has good reproducibility and accuracy， and the average recovery was over 80%. Ultraviolet spectrophotometry method and distillation method had low recovery （67.30% and 66.50%， respectively） and high experimental errors. Ultraviolet spectrophotometry method had complex operations and high cost. Distillation method was easy to operate and had low cost， but time-consuming was more. In conclusion， the mixed solvent extraction method had better precision and accuracy.