The county science and technology workers are critical components of Chinese science and technology workers, playing an important role in science and technology application and popularization. Improving the skills for Internet use of Chinese county science and technology workers can promote the level of science and technology in our counties and towns and expand the way of transformation of advance scientific and technological achievements. This paper analyzes county science and technology worker Internet use and the determinants based on the Second National Survey data of county science and technology workers. The results show that, among all Chinese science and technology workers in counties, there are only 51% were proficient in Internet use while computer configuration, education, age, length of service are the crucial factors affecting their proficiency . Hence, three recommendations are proposed to improve the skills for internet use of county science and technology workers.