Network asset detection method and device

The embodiment of the invention provides a network asset detection method and device, relates to the technical field of internet security, and can effectively identify shadow assets of an enterprise and reduce the risk that the enterprise is attacked. The method is applied to a first electronic device and comprises the steps that network segment information of a preset network is acquired, and the network segment information comprises IP addresses of a plurality of second electronic devices; based on the IP addresses of the plurality of second electronic devices, respectively sending a first request message to the plurality of second electronic devices, wherein the first request message is used for detecting whether the plurality of second electronic devices are online; receiving first response messages respectively sent by online electronic equipment in the plurality of pieces of second electronic equipment; wherein the first request message and the first response message comprise any one or more layers of p