In response to changeful environment in twenty-first century, organizations are constantly reviewed to improve the operation of government efficiency; while there are still having examples of mismanagement been exposed by citizens or media, which have already disappointed people for such careless errors. It is better to impute this phenomenon on the concepts of leadership and management have been reached the turning point, which needs more effective leading ways and managing techniques to react, rather than blaming leaders for lacking of leadership ability. Han Feizi, which integrates principles of Legalism, has been noted for containing the most complete and significant politics ancient codes in China. The thoughts of Han Fei are famous for substantial effects and also useful tools to consolidate monarchal status and prosper country. Using humanity as bases, Han Fei generates his philosophy, which are using laws (ªk, Fǎ) to rule a country, power(¶Õ, Shì) to officiate laws, and techniques (³N, Shù) to strengthen power. These concepts are related to each other and indispensable for one another. Hence, Han Fei's philosophy has positive meaning for constructing an effective system toward leadership management, which may provide some views and methods for present managing problems in administrative organizations. This research aims at exploring leading efficiencies of directors' in administrative organizations through their cognitions for Han Fei's philosophy and relationships between self-perception and leading efficiency. This research utilizes Questionnaire survey methods and takes directors of administrative organizations in Taiwan as objects. 400 questionnaires are dispatched to the objects by handing in person, sending e-mails or posting, and 252 returned validly. The collected information are used to test and verify each hypothesis by information pretest, validity analysis, descriptive analysis, factor analysis, difference analysis and regression. According to the analyzed results, the seven aspects of Han Fei's philosophy, cognition of laws, cognition of techniques, cognition of power, self-perception of laws, self-perception of techniques, self-perception of power, and self-perception of rewards and punishment, all show highly positive affects toward leading efficiency. This outcome proofs the higher identification with Han Fei's philosophy, the higher leading efficiency. By Standardized Regression Coefficients, £] coefficients of aspects in Han Fei's philosophy are positive, which means these aspects make remarkable forecasts for leading efficiency. The results in this research provide not only suggestions in leadership management for directors in administrative organizations but also hints for follow-up researches in Han Fei's philosophy. Hope that this research could bring the leadership managements of directors' into full play and enhance the leading efficiencies of administrative organizations.