Abstract: This article through the HTML5 functions of the canvas online three view drawing, complete the online generation and processing three dimensional view of the original data, then the boundary representation (BR) three view reconstruction algorithm based on 3D entity entity, proposes the strategy tree generating basis of the ring, and puts forward the solving scheme of cutting point, reduce the number of repeated projection, the heuristic search strategy can effectively improve the processing speed of the algorithm, and the depth information of 3D candidate element and two element between the actual search within the wiki ring, using dotted line information and non epidemic edge based on partition algorithm and decision chain algorithm is proposed to remove false yuan new algorithm, existing algorithms through the improvement of the opposite side of the logo, to solve the multi solution problem, the final 3D entity effectively. Finally, using webgl technology to complete the rendering and display of 3D entities through the browser, so that three-dimensional entities with multi angle visibility and 3D effect.