Cardiac mucinous tumor is a major surgery in general and should be treated surgically when symptoms are detected. Cardiac mucinous tumors are benign primary tumors of the heart, most commonly found in the left atrium, followed by the right atrium, and the preferred treatment is surgical resection. Surgery for cardiac mucinous tumors is generally a major cardiac surgery, which requires a certain degree of preoperative physical condition and good postoperative care for the patient to recover gradually. There are risks associated with each type of surgery, but the success rate for this type of surgery is high. During the surgery of cardiac mucinous tumor, it is necessary to choose a suitable surgical incision, fully expose the tumor, and after complete and thorough removal of the tumor, the recurrence rate is usually small. After surgery, good nursing care should be provided, and medication should be taken on time and in accordance with the doctor’s instructions, and the prognosis is generally good. When you are found to have cardiac mucinous tumor, you should consult a doctor in time and choose the appropriate treatment plan according to the doctor’s advice to avoid delaying your condition.