The invention discloses an analysis method for targets entering a substation environment. The method comprises the following steps: an infrared sensing network is established around the substation, and the infrared sensing network surrounds the edge of a set area around the substation; constructing an infrared human behavior database, wherein a plurality of infrared human behavior templates are stored in the infrared human behavior database; The infrared sensing network performs infrared detection on the target entering the set area in real time, tracks the behavior of the target, and generates an infrared video image; and the infrared sensing network performs infrared detection on the target entering the set area in real time. Gaussian mixture model and background subtraction algorithm are adopted to extract the behavior spatio-temporal contour of the object in the infrared video image, and the behavior spatio-temporal contour of the object is enhanced in contrast. The behavior space-time contour of the target is compared with a plurality of infrared human behavior templates stored in the infrared human behavior database one by one, and similarity analysis is performed on the behavior space-time contour of the target and the infrared human behavior templates.