The Chi-Mei Doctor Case is the first case in our country involving a claim for civil liability for damages due to the Karoshi of an employed physician. Its judgment holds significant precedent, and since the first-instance ruling, it has sparked numerous discussions in academic circles. This article conducts an analysis and interpretation of the successive judgments in the Chi-Mei Doctor Case, focusing on the "legal constitution of employer' s tort liability" and "reduction of damages for the victimized physician' s contributory negligence." This article also outlines the judicial practical stance in Japan regarding the determination of liability for damages in Karoshi, aiming to provide insights and references for our country.