This paper explains the current problems and challenges faced by fruit and vegetable industry in China, and proposes the solution strategies of functional extension design for fruit and vegetable packaging. The methods and processes of fruit and vegetable packaging functional extension design are summarized from the four dimensions of packaging vision, structure, material and technology by systematically analyzing the theoretical research and excellent design cases of fruit and vegetable packaging functional extension in China and abroad, and are applied to the packaging design practice of seasonal fruit litchi.