An edge application discovery method, applied to an edge application client, EAC, and comprising: sending an application discovery request message to a core network, so that the core network matches a target edge application server, EAS, according to application content information carried in the application discovery request message, wherein the application content information at least comprises network parameter information, and the network parameter information is used for instructing the EAC to match the information of the corresponding EAS; and receiving target EAS information replied by the core network, wherein the target EAS information is used for indicating the target EAS; wherein sending the application discovery request message to the core network comprises: sending the application discovery request message to a gateway being a 5G-RG by means of a preset first interface, and triggering the application discovery request service to the core network by means of the 5G-RG, so as to send the application discovery request message to the core network; or sending the application discovery request message to a gateway being a FN-RG by means of a preset second interface, and triggering the application request service to a proxy by means of the FN-RG, so as to send the application discovery request message to the core network by means of the proxy. sending an application discovery request message to a core network, so that the core network matches a target edge application server, EAS, according to application content information carried in the application discovery request message, wherein the application content information at least comprises network parameter information, and the network parameter information is used for instructing the EAC to match the information of the corresponding EAS; and receiving target EAS information replied by the core network, wherein the target EAS information is used for indicating the target EAS; wherein sending the application discovery request message to the core network comprises: sending the application discovery request message to a gateway being a 5G-RG by means of a preset first interface, and triggering the application discovery request service to the core network by means of the 5G-RG, so as to send the application discovery request message to the core network; or sending the application discovery request message to a gateway being a FN-RG by means of a preset second interface, and triggering the application request service to a proxy by means of the FN-RG, so as to send the application discovery request message to the core network by means of the proxy. sending the application discovery request message to a gateway being a 5G-RG by means of a preset first interface, and triggering the application discovery request service to the core network by means of the 5G-RG, so as to send the application discovery request message to the core network; or sending the application discovery request message to a gateway being a FN-RG by means of a preset second interface, and triggering the application request service to a proxy by means of the FN-RG, so as to send the application discovery request message to the core network by means of the proxy.