Introduction: Fennel (Foeniculum vulgare Mill) is one of the oldest spice plants which, due to its economic importance and significant pharmaceutical industry applications, is considered as one of the world’s most important medicinal plants. The purpose of this study is to investigate and collect scientific reports such as morphological characteristics, phytochemical compounds and evaluation of the therapeutic properties of this valuable medicinal plant that have been published. Methods: In order to gather the information the keywords Fennel and Foeniculum vulgare mill, therapeutic, and pharmacology have been searched until January 1, 2015 from journals accessible in databases such as ScienceDirect, Scopus, EBSCO, Medline, PubMed, Embase, SID and Iran Medex. Results: The results showed that this plant has various pharmacological properties including antioxidant, anti-cancer activity, anti-inflammatory, antifungal, anti-bacterial and estrogenic effects which are probably due to the presence of aromatic compounds such as anethole, estragole and fenshon. Conclusion: Fennel possesses various pharmacological properties and the fennel bioactive molecules play an important role in human health, hence, it might be used for different drug productions.</p
