Disclosed in the present invention is the arthritis alleviation activity of a leaf extract of Ficus erecta var. sieboldii, confirmed through animal experiments. According to the present invention, it is possible to provide a composition for alleviating arthritis using the leaf extract of Ficus erecta var. sieboldii. The composition for alleviating arthritis can be commercialized as functional food, medicine, etc.본 발명은 동물실험을 통해 확인된 좁은잎천선과 잎 추출물의 관절염 개선 활성을 개시한다.