Continual Improvement (CI) is closely linked to Japanese quality management. As the CI concepts were developed in a strong Buddhist culture in the background, a remarkable similarity can be seen between CI and Buddhism. This paper reveals the overlap between various sciences of CI and various Suttas’ in the Sutta Pitaka of Buddhism as the main reference body. Sutta Pitaka is one of the three key branches of Tripitaka which is the oldest and most original text available on the Buddhist philosophy. The similarities that are observed deep inside the tools, techniques and behavioral branches of CI such as cause and effect relations, problem validation, problem solving sequence, problem types, corrective and preventive action, nonconformity, autonomy and knowledge are discussed in detail.