Abstract:Tomato （Solanum lycopersicum） is one of the most important economic crops worldwide due to its rich nutritional value and extensive processing characteristics. In recent years，the bioactive substances in tomatoes have attracted considerable attention for their potential as functional food components. This paper systematically reviewed the main tomato varieties，analyzed the types of processed and composite tomato products，and focused on the functional properties and potential health benefits of active ingredients such as lycopene，lutein，dietary fiber，and oligosaccharides in tomatoes.