According to the card number coding method and device of the one-
chip dual-application intelligent card, the dual-identification
payment card transaction method and device, the storage medium and the
computer equipment, after the intelligent card is obtained, the BIN numbers of the first card organization and the second card organization in the
chip of the intelligent card are determined firstly, and the application priority of the first card organization is higher than that of the second card organization; then a standard card number is obtained through distribution based on the BIN number of the second card organization, a composite card number containing the standard card number is obtained based on the BIN number of the first card organization and the standard card number code, then the standard card number and the composite card number are written into the card organizations corresponding to the
chip respectively, and the composite card number is printed on the card surface, so that the information of the card surface is concise; and after the transaction is preferentially routed to the card organization network with the high priority according to the BIN number during the transaction, the
route can be transmitted to the card organization network with the low priority through the standard card number, so that the problem of routing errors is effectively solved, and the
payment use requirements in various telecommunication service scenes can be met.