The invention provides an IP annotation method and device, an electronic device and a memory medium and relates to the technical field of a computer. The IP annotation method comprises the steps of obtaining port scanning information of a target IP, wherein the port scanning information at least comprises port description information; obtaining device information of a target device corresponding to the target IP, wherein the device information at least comprises information of a geographical location at which the target device is located and target device product information corresponding to the target device; and establishing a corresponding relationship between the target IP, and the device information and the port description information. According to the IP annotation method and device, the electronic device and the memory medium, the high-dimension annotation can be carried out on the IP, the information of the IP is relatively complete, and the value and reliability of the information of the IP in a situation awareness application are improved.