Logotherapy, advocated by Viktor E. Frankl (1905-1997), has been long known for the application of clinical psychiatry for a long time. The pioneer of domesticThanatology, Mr. Fu WeiXun, discerninglyfirst to pointed out the similarities of Frankl’s Logotherapy and Chinese traditional Confucianism, Buddhism and Taoism. His introduction and quotation raised the attention of the scholars of thehumanities. So it suddenly became a common practice to present many relevant researches, and it isstill in the ascendant so far. This article is going to investigate the implicit meaning of Logotherapy in Mencius' thought by analyzing the existing feeling, inherent basis and ultimate card separately. This article first pointed out in the presence of Mencius feelings of self-specific requirements must become truly moral existence, the responsible attitude will be able to turn the reality of disappointments to the conversion of the power of life and growth, and finally achieve a meaningful abundant life; and coincides with Frankl's proposition. Furthermore, Mencius thought that one can achieve his ideal state is due to transcendental personality and inherent goodness of conscience conscious, namely, with the basis of the inherent morals disposition one can guarantee to become virtuous holily.Frankl believes that people is able to create a deep rich meaning of life because of people's demand of the meaning of life.Two thoughts have different approaches but contribute to the same end.Finally, from Mencius’therapy,it is obvious that Mencius realize that the moralityis to find out the ultimate true. Mencius' thought has religion essentials. Franklalso take the piety and confirm of religion as the most important factor. So, he regards himself as a medical ministry.