Double coding packaging method of OTA

The invention discloses an OTA dual coding packaging method. A flashing message packaged by the method is used for flashing transmission of a receiving end of the flashing message upgraded from a first version to a second version. The flashing message comprises a coding group, and a coding message is stored in the coding group; when the flashing message is received by a receiving end, the coding message is converted into a coding number by the receiving end, and then the coding number is obtained by the receiving end according to a preset corresponding relation of coding number-first version flashing data-second version flashing data, and first version flashing data and second version flashing data corresponding to the flashing message are obtained; the second version of flashing data is used for upgrading the receiving end, and the first version of flashing data is used as a backup by the receiving end. According to the packaging method, the flash message can simultaneously carry data information of versions