The invention discloses a dry air production and transportation control system for a bin. The control system is composed of a temperature and humidity sensor, an electrically controlled valve, a dry air production component, a relay, a dry air transport assembly, a production power supply circuit, a transportation and power supply circuit, and a temperature and humidity measurement and control device. The temperature and humidity sensor and temperature and humidity measurement and control device are electrically connected; the temperature and humidity measurement and control device controls the transportation and power supply circuit by the electrically controlled valve and controls the production power supply circuit by the relay; the dry air production component and the dry air transportassembly are communicated; the electrically controlled valve is arranged at a transportation end of the dry air transport assembly; and the relay and the dry air production component are connected electrically. Therefore, a full drying effect is realized in the bin.