Abstract: Lotus leaf tea was prepared with dry leaves as raw material, hot water extraction process and microwave extraction process were used to compare the effect to the alkaloids, flavonoids content and transmission rate of lotus leaf tea. The orthogonal extraction process was based on the single factor experiment. In hot water extraction, when the extraction temperature 90℃, extraction time 15min, extraction ratio 100 ∶1, lotus leaf tea extracts flavonoids was 146.28mg/g, alkaloid content was 11.56mg/g, the transmittance was 99.00%. While in microwave extraction, when the microwave time 3min, microwave power 700W, extraction ratio 150∶1, lotus leaf tea extracts flavonoids was 146.39mg/g, alkaloid content was 20.52mg/g, the transmittance was 85.11%. The results showed that the microwave extraction had better effects than hot water extraction.