The invention relates to the technical field of food drying, in particular to a static electricity and dry-air blast combined drying device. The device of the invention comprises a drying oven, a drying device, a placing device and a filtering device. The right side of the drying oven is provided with the drying device. The drying device includes a connecting pipe, an outlet pipe, a heat pump, aninlet pipe, a fixed rod, a fan, a humidity sensor, a one-way valve, a high-voltage electrostatic electricity generating pipe, a gas pipe, a fixed box, a first box cover, an air duct, a drying filter screen and an electronic control valve. The connecting pipe is communicated with the top end of the right end face of the drying oven. In the invention, through the high-voltage electrostatic electricity generating pipe and the fan, This arrangement is matched with ozone generated after the high-voltage electrostatic electricity generating pipe generates an electric field, traction of the air by the fan, heating of the air by the heat pump and communication between the connecting pipe and the drying oven, the product can be sterilized and evenly evaporated at a lower temperature when a productwith less moisture is dried. Therefore, the drying time is greatly shortened, and the equipment has advantages of low manufacture cost, environmental protection and energy conservation.