This application provides a dual connectivity configuration-based communication method, an apparatus, a device, and a storage medium. The method includes: A terminal device may receive a deactivation command sent by a master node or a secondary node. The terminal device deactivates an SCG or a PSCell according to the deactivation command. To be specific, the terminal device may deactivate the SCG or the PSCell based on an actual situation. For example, when the terminal device has a low requirement for a data transmission rate, the terminal device receives the deactivation command, and deactivates the SCG or the PSCell according to the deactivation command. After the SCG or the PSCell is deactivated, based on this, the terminal device does not need to listen on PDCCHs of the PSCell and an SCell in the SCG, and does not need to send an uplink signal such as an SRS or CSI on the PSCell and the SCell in the SCG. Therefore, power consumption of the terminal device can be reduced.