To study the extraction methods for chlorogenic acid in Lonicerae japonicae Caulis. Methods: The microwave extraction and ultrasonic extraction of chlorogenic acid in Lonicerae japonicae Caulis were set based on orthogonal design. The chlorogenic acid contents of different extraction techniques were detected by HPLC. The results of the two extraction methods were compared. Results: The results show that the chlorogenic acid was highest, up to 0.357%, when microwave time was set at 60s with 50% ethanol concentration and solid-liquid ratio of 1：15 by microwave extraction. The chlorogenic acid was highest when methanol concentration, up to 0.321%, was set at 50%, ultrasonic power 50W and solid-liquid ratio 1:20 by ultrasonic extraction. By taking chlorogenic acid content as an indicator, microwave extraction method was better than ultrasonic extraction. Conclusion: According to the results, the best extraction method for Chlorogenic acid in Lonicerae japonicae Caulis was microwave extraction with less time cost and low energy consumption and the extraction rate is better than that of the ultrasonic extraction. It can be applied in the extraction of chlorogenic acid in Lonicerae japonicae Caulis.