An apparatus for supporting injection mixing work comprises a memory for storing data for supporting injection mixing work, a display for displaying the data stored in the memory and a controller for controlling the display. The memory has a patient predictability data file for storing patient predictability data including at least patient predictable information, an injection prescription data file for storing injection prescription data corresponding to the patient predictability data, and a combination related data file for storing combination related data corresponding to each injection of the injection prescription data. The controller displays the predictability data stored in the patient predictability data file according to both the injection prescription data corresponding to the patient predictability data and the combination related data of each injection included in the injection prescription data.