Abstract:Tomato (Solanum lycopersicum L.) is a very important commercial crop and also a significant model for studying the floral development in a sympodial perennial plant. Broadly speaking, flower development can be divided into four steps: flowering transition, meristem identity decision, floral organ initiation and floral organ morphogenesis. In recent years, our understanding with the process of floral development in tomato has improved considerably, but there are few reviews about this. By reviewing researches about floral development in tomato in recent years, the morphology character and gene regulation during the process of floral development in tomato were summarized. This review focused on the genes involved in the flowering transition and meristem identity, as well as the interrelation of them, in order to provide some theoretical basises for the further research about these two processes in tomato.