The reconstruction of an existing railway is important for railway reformation or double-track design. Obtaining the curve parameters of the railway and the location of the main stake accurately and rapidly is the key issue for existing railway reconstruction. A new method based on point cloud data is proposed in this paper. https://safeersappliancers.shop/product-category/siemens-et651he17e-59cm-4-burners-ceramic-hob-electronic-display-touch-control/