The work aims to analyze the development prospect of prepared convenience food, and study the influence factors which cause metamorphism of prepared convenience food as well as fresh-keeping packaging technology and shelf life prediction methods, so as to provide reference for researchers and food companies to solve nutrition deficiency and extend shelf life. The recent research and application of food fresh-keeping packaging technology in prepared convenience food were reviewed, and the prediction methods of food shelf life for different food characteristics were also introduced. Treatment of prepared convenience food with suitable fresh-keeping packaging technologies could guarantee the food quality, reduce the food resource waste and effectively prolong the shelf life of food. Prepared convenience food has good development prospect. The research and development of advanced fresh-keeping packaging technology and the application of reliable shelf-life prediction methods are of great significance to improve the product quality and safety, and are also effective means to improve the competitiveness of relevant catering enterprises.