A method for detecting a ship target through double-station single-array-element high-frequency ground wave radar comprises the steps that R-D data of a single channel of the high-frequency ground wave radar within a certain time quantum is utilized for constructing R-D-T three-dimensional data, and a dynamic planning method is utilized for obtaining an undirected flight path detection result of two stations based on the constructed R-D-T three-dimensional data; a flight path matched and correlated with a first flight path of the first station is found in the second station, then flight paths, correlated with left flight paths of the first station, of the second station are found, and finally correlated flight paths within the covering range of the two stations are obtained. Only one receiving array element is needed in each ground wave radar station, and a detecting and tracking integrated method can be utilized for obtaining the undirected flight path of the target and the matching and correlating result of the two stations. The needs for the size of a high-frequency ground wave radar receiving station can be greatly reduced through a ground wave radar system of the single-array-element receiving stations, the defect that traditional array type ground wave radar needs a large-size radar field is overcome, and application of the target detecting ground wave radar is remarkably improved.