The invention discloses a drying method in corrugated paper production process, comprising the following steps: placing corrugated base paper on a conveyor belt of a conveying device, conveying the corrugated base paper into a protective casing by the conveying device, opening an air blower and filtering the introduced air by a filter screen plate, two ends of the filter screen plate slide along asliding rod under the impact of the air volume, a spring is stretched to cushion and protect the filter screen plate, and the two microwave generators cooperate with the air blower to dry the corrugated base paper entering a drying room. The drying method has the advantages that the temperature data acquisition can be quickly realized, the information security is effectively ensured by a front-end server, the temperature of the drying room can be monitored in real time, and the minimum output power that can meet the cooling requirements can be obtained by comparing with the preset temperature, thus avoiding the paper being baked by too high temperature.