The Eigen-factor algorithm is an important method for journal quality evaluation. This paper constructs a new algorithm to evaluate the author influence based on the improvement of the Eigen-factor algorithm. This paper first introduces the basic principle of the Eigen-factor algorithm, and then improves the Eigen-factor algorithm by analyzing the particularity of author citation compared with journal citation. Next it introduces the basic steps of the new algorithm. Finally it makes an empirical research based on author citation network of library and information science in China and the ranking of the authors is obtained. At the same time, the ranking result is compared with traditional citation counts.