The invention provides a service scheduling method and device, a terminal, a
chip and a storage medium, and relates to the field of communication, and the method comprises the steps: responding to a first communication card in the terminal to initiate a signaling service, executing a network selection resident service by a second communication card, and determining a signaling protection time period; within the signaling protection time period, the signaling service of the first communication card is scheduled, and the network selection resident service of the second communication card is suspended; and in response to the situation that the signaling protection time period is exceeded and the scheduling of the signaling service is not completed, recovering the network selection resident service, and scheduling and executing the signaling service and the network selection resident service in a
time division multiplexing mode. Therefore, the stability and reliability of the signaling service of the first communication card can be ensured, and the mobility of the second communication card can also be ensured, so that the second communication card can normally carry out network selection
residence related operations, and a good connection state with a network is maintained.