The invention discloses a method for detecting bridge from remote sensing images. Considering the position relation between bridge and river, firstly, segment a river region using the two steps of coarse segmentation and fine segmentation according to the properties of the water area in the remote sensing image; next, execute a Beamlet transformation on the river region, and accurately detect andsegment the bridge according to the properties of the bridge by using the obtained line characteristic information on the basis of the Beamlet transformation, and considering the long straight-line feature of the bridge, implement a post-processing on the obtained result to achieve the final result of bridge detection. Because the Beamlet transformation is used to extract the line characteristic information of the bridge to be detected, the anti-noise performance is enhanced by means of the anti-noise property of the Beamlet transformation; by using the extracted line characteristic informationfrom the Beamlet transformation, the bridge is detected, and compared with the prior technique of using the method of searching bridge points, the invention has no limitation on the width of the brid ge, the detection rate is beyond 86 percent, and missed detection and false detection are not easy to occur.