The present invention discloses a combined drying method suitable for fruits and vegetables. Firstly, the fruits and vegetables to be dried are subjected to a carbon dioxide soaking treatment, and the soaked fruits and vegetables are taken out; then the soaked fruits and vegetables are placed in a hot air-intermittent microwave drying oven, and a hot air source and a microwave source are coupled together to carry out a hot air-intermittent microwave combined drying. By using the carbon dioxide soaking treatment to improve microscopic pore structures of the fruit and vegetable materials, the method enhances permeability and thermal conductivity of the materials, improves color and preserves nutrient quality. At the same time, the hot air-intermittent microwave can realize an internal and external simultaneous heating, intermittent and variable power microwaves can enable temperatures and water contents of the materials to be redistributed, and the method plays functions of saving energy and guaranteeing quality.