Abstract: This paper introduce a new method for automatic registration based on amalgamation of information on TM image and GIS vector data. Firstly, the paper build up the transform relationship between TM image and GIS vector data approximately, then take the information(water system, road network etc) on vector data as transcendent knowledge, extracting line-like object on TM image using multi-scale template automatically. Finally, take the results extracted automatically as image-based observation, the data of vector as ground-based observation, numerate rectify parameter of TM image by the principle of generalized point photogrammetry . In this way, the automatic registration on new TM image and old vector map is realized. Generally speaking, the result of the experiment indicates that the method can not only reach pixel precision, but also improve the efficency of data processing.