Capparis spinosa L. was investigated as research subject in this paper. The main volitile chemical contents, allelopathy effect of stem-water extraction, extraction process of total flavonoids and antioxidation activity in vitro and chemical components of volatimatter have been analysed in this paper. At the same time, a monomer from ethanol extraction of Capparis spinosa L. stem was isolated, purified and structurally identified. The results were described as follows:
1. Uniform design was used to opt...