The more healthcare industries apply computerized provider order entry (CPOE) to reduce cost and risk of patient safety in United States. Mostly three-level hospitals have adopted CPOE for health care to cope with regulation of national health insurance, and arising healthcare services quality in Taiwan. CPOE promote healthcare, however, produces some unanticipated consequences. Prior researches argued some unintended consequences of CPOE such as adverse drug events and system errors. Some positive consequences accompanied with adverse consequences too, both elicited our interesting to study the further. This research explored both the desirable and undesirable consequences produced from usage of CPOE, and applied depth-interview method to interview three roles of the medical administration, physicians and information staffs. These identified consequences discussed detailed by categories of functionality of CPOE. Total 178 consequences were extracted from transcribed document of recording interviews, and identified 158 critical consequences through the panel rating. We coded these consequences based on stakeholders, functionality and categorization of Rogers' Diffusion of Innovation to understand insight of physician using CPOE. At result, these consequences classified desirable consequences of 5l (32%), undesirable consequences of 107(68%) and direct consequences of 102(65%).