A method for determining a trajectory of a human target, comprising: obtaining a to-be-processed image; extracting a target feature of a to-be-tracked human target in the to-be-processed image as a to-be-searched target feature, wherein the target feature is a non-facial feature; searching for acquisition attributes corresponding to the to-be-searched target feature based on a table of established and stored correspondences between target features and acquisition attributes according to the order of reception time; wherein an acquisition attribute corresponding to one target feature in the correspondences is an acquisition attribute of an image containing the target feature, and the acquisition attribute contains an acquisition location or an acquisition location and acquisition time of the image, wherein the target features in the correspondences are extracted from images including human targets; the images are captured by acquisition devices in communication with a same server, wherein the correspondences are stored in a local database of the server or in a database connected to the server; and determining a trajectory of the to-be-tracked human target based on the found acquisition attributes and either their acquisition time or their order in the stored correspondences, wherein when the acquisition attribute contains the acquisition location, the correspondence is established by the server performing operations of: receiving the captured images sent in real time by the acquisition devices; extracting target features of human targets in the received images; storing the target features of the images in sequence of reception time; determining the acquisition location of each of the received images and establishing the correspondence between the acquisition location and the target feature of the same image; or wherein when the acquisition attribute contains the acquisition location and acquisition time, the correspondence is established by the server performing operations of: receiving the captured images sent in real time by the acquisition devices; extracting target features of human targets in the received images; determining acquisition time and acquisition location of each of the received images; and establishing the correspondence between the acquisition location, the acquisition time and the target feature of the same image. obtaining a to-be-processed image; extracting a target feature of a to-be-tracked human target in the to-be-processed image as a to-be-searched target feature, wherein the target feature is a non-facial feature; searching for acquisition attributes corresponding to the to-be-searched target feature based on a table of established and stored correspondences between target features and acquisition attributes according to the order of reception time; wherein an acquisition attribute corresponding to one target feature in the correspondences is an acquisition attribute of an image containing the target feature, and the acquisition attribute contains an acquisition location or an acquisition location and acquisition time of the image, wherein the target features in the correspondences are extracted from images including human targets; the images are captured by acquisition devices in communication with a same server, wherein the correspondences are stored in a local database of the server or in a database connected to the server; and determining a trajectory of the to-be-tracked human target based on the found acquisition attributes and either their acquisition time or their order in the stored correspondences, wherein when the acquisition attribute contains the acquisition location, the correspondence is established by the server performing operations of: receiving the captured images sent in real time by the acquisition devices; extracting target features of human targets in the received images; storing the target features of the images in sequence of reception time; determining the acquisition location of each of the received images and establishing the correspondence between the acquisition location and the target feature of the same image; or wherein when the acquisition attribute contains the acquisition location and acquisition time, the correspondence is established by the server performing operations of: receiving the captured images sent in real time by the acquisition devices; extracting target features of human targets in the received images; determining acquisition time and acquisition location of each of the received images; and establishing the correspondence between the acquisition location, the acquisition time and the target feature of the same image.