This paper aims at indicating the application of Buddhist Philosophy in the remedy ofhuman mind and the cultivation of psychological well-being. This kind of science, theso-called Buddhist Psychology, is based on the three core principles of BuddhistPhilosophy, i.e. the Four Noble Truths, the Twelve Links of Conditioned Existence, andthe Doctrine of Impermanence. All these principles are intended to teach a person toapprehend the reality relating to the nature of all things by encompassing theBuddha’s teachings on the causes of psychological problems, the means for solvingthem and the cultivation of mental well-being precisely. In addition, the clear insightinto the Buddhist doctrines enables a person to live his life in accordance with thetruth. In other words, such knowledge can alleviate profound suffering and enhancemental quality of every human being as well. The finding from the literature reviewconfirms that the Buddhist Psychology is efficient for both treating negative mentalstates and promoting positive mental states. It therefore should be studied more andits way of the application should be spread as widely as possible.