The present disclosure provides an information issuing method, a data sending method, as well as corresponding apparatus and system, and relates to communication field. The information issuing method includes: configuring, by a network access device, path information for a terminal, a Radio Resource Control (RRC) connection being established between the network access device and the terminal, the path information being configured to indicate a sending path of uplink data, and the sending path including a mobile communication link or a Wireless Local Area Network (WLAN) link; and issuing, by the network access device, the path information to the terminal, the terminal being configured to determine a target sending path of uplink data according to the path information, and send the uplink data to the network access device according to the target sending path.