A medical service support system includes: a first input unit that inputs first patient information on a patient in carrying out a medical examination of the patient; a second input unit that inputs second patient information on the patient in executing, to the patient, a pretreatment of an inspection being ordered according to a medical examination result of the patient; a memory that stores the first patient information inputted by the first input unit and the second patient information inputted by the second input unit; a consistency judging unit that judges match or mismatch of respective common items contained in both of the first patient information and the second patient information stored in the memory, by comparing the first patient information with the second patient information for each common item; and a display unit that displays a consistency judgment result by the consistency judging unit.