The embodiment of the invention relates to the technical field of computer network security, in particular to an industrial control network leakage asset discovery method and system based on an activedetection technology. The method includes automatically discovering the industrial control equipment in the network according to the specified IP range, and automatically identifying the informationof the equipment; detecting the multiple ports of the device at the same time, so that the accuracy of the information collection efficiency of the target device is improved; and finally, comparing the data packet information returned by the device with a local fingerprint database to confirm the open service information on the device, and storing the device information and the device service information in a warehouse.