The invention provides a method for tracking an ice floe locus. The method comprises: a high-frequency camera is used for shooting an ice floe area to obtain a plurality of images; target ice floes are extracted and tracked; in two continuous frames of images, target ice floes of the two continuous frames of images are matched by using a particle tracking speed measuring matching algorithm so as to obtain corresponding target ice floes; areas of the corresponding target ice floes in the two continuous frames of images are calculated respectively; if an area of a target ice floe in a next frame of image is smaller than the area of the target ice floe in the current frame of image, the target ice floe of the current frame is broken and whether other ice floes are around the target ice floe is determined; the area of the current frame of target ice floe is calculated and is compared with a total area of ice floes in a connection area of a next frame after expansion; if the total area of ice floes in the connection area after expansion is larger than the area of the current frame of target ice floe, the expansion factor is reduced until the total area of the ice floes in the connection area after expansion is equal to or smaller than the area of target ice floe of the current frame; and then the locus of the target ice floe is drawn.