Geosteering while drilling is a high-quality application of complex reservoirs development, and 3D visualization of wellbore is one of the essential and indispensable technologies for it. The methods of modeling wellbore which have equable or unequable radius are researched, and the visualization of geological properties is achieved by using imaging principle, based on the well inclination data and well logging data getting from LWD. Then the 3D wellbore model and the imaging information would be combined together, which means showing the drilling stratum attributes in the wall of the wellbore. A system model is implemented based on OpenInventor, of which running tests show that attributes of drilling stratum from wellbore can be observed vividly and accurately, and it laies a solid foundation for the implement of geosteering while drilling.