Target retrieval method

The invention discloses a target retrieval method, which is executed by a cloud and comprises the following steps of: acquiring to-be-retrieved feature information searched by a video monitoring system by adopting an event detection algorithm and an occurrence position of the to-be-retrieved feature information; acquiring configuration information of a to-be-controlled camera, and matching a corresponding control instruction in a pre-established control instruction library according to the configuration information and the appearance position; and controlling the to-be-controlled camera to obtain target feature information according to a matched control instruction and the to-be-retrieved feature information, and performing target retrieval according to the target feature information. According to the configuration information of the to-be-controlled camera, a retrieval scheme adaptive to different cameras is provided, and under the condition that the precision is ensured as much as possible, the flow consump