This paper described the nursing experience of caring for a patient with acute myocarditis who used the pulse-induced contour cardiac out-put monitoring (PiCCO) and supported by inotropic agents. During the nursing care period (from 12/21/2015 to 12/24/2015), data were collected through observation, interview, and review of medical records, after es-tablishing caring relationship with the patient. By applying the Gordon's 11 functional health patterns assessment tool, the author confirmed that the patient had the following problem: decreased cardiac output, sleep pattern disturbance, and anxiety. The condition progressive rapidly in the intensive care unit. The patient was under life-threatening status, leading to emotional symptoms of anxiety, disturbance, and crying behavior. After listening to the patient expressed his psychological feelings with a caring attitude and establishing a good nursing relationship with the patient, the author encouraged the patient to express his doubt in mind, assisted the patient adjust psychologically, used pictorial instructions to encourage the patient, and offered music therapy to alleviate his anxiety caused by the unknown development of disease. The author took the initiative to provide treatment information and alleviated the physical discomfort to reduce nighttime sleep interruption so that the sleep quality could be improved. Inotropic agents were gradually reduced from the treatment plan. The patient recovered and was then transferred to the ordinary ward after receiving intensive treatment from medical team. The nursing experience highlights the significant function of nursing care that is essential in promoting the quality of care.