| Close Range Photogrammetry, which is a branch of photogrammetry, has development rapidly in the past twenty years. Nowadays, Close range photogrammetry is an effective way been used to gather different information as essential basic data for information system. It has an extensive application prospect in archaeological studies, medical science, the traffic accident deal with fast etc. We use a method for 3D-Reconstruction based on structure lighting, this method is applicable for the object with indigent texture such as some industry goals and biomedical goals that is used for matching. The structure lighting, which is projected on the object by laser, is used as the texture for matching. This texture includes point, pain, grid chart etc.Because the surface of the plaster model is absent of the texture, we are difficult to match the corresponding points. This paper introduces a method based on structured light to find correspondent points on the Epipolar Lines and the laser feature lines. The method resolves the difficulty of the matching of the corresponding identical points, and it's easy to be carried out and requires low hardware. So the method the paper protests can be popularized in the 3D Reconstruction of the objects with indigent texture or in the condition of bad illumination.Keep the objects not moving, by changing the direction of the laser projection, we can get a series of curve texture on the object. By changing the direction of laser to projected different texture on the object. For the purpose of 3D-reconstruct the object, we can get corresponding point in each corresponding curve by using the method of relativity direct solution. After The forward intersection we can get the coordinate of the point which is on the surface of plaster model. When we use this point to generate TIN, we must project the spatial points to the plane and every point can't overlap each other. So we also must generate TIN patches dividually then merge them into the whole plaster model's DSM.
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