PROBLEM TO BE SOLVED: To provide a medical image display device capable of improving convenience for a user in use of applications.SOLUTION: A medical image display device 1 comprises: a display 2 which displays plural medical images individually generated by plural applications an input unit 3 which receives an input operation to one of the applications and an operation processor 11 which grasps the operation meaning of the input operation received by the input unit 3 and applies an operation content having the same operation meaning as the grasped operation meaning to an application other than the application being the target of the input operation.