A fully-digital distributed scintillation crystal lifting furnace control system includes an upper computer, an intermediate-frequency heating module, a weighing module, and a crystal growth control module. A control module communicates with the weighing module to obtain a weighing signal, the control module communicates with the intermediate-frequency heating module to set a power value and read an intermediate-frequency parameter, the control module communicates with the upper computer to upload a monitoring signal and receive an operating command, and all the communication is digital and greatly improves the control accuracy of the system. The system provided by the invention is designed based on the ideal of a distributed control system. The control module and the upper computer are mutually independent in function, so that crystal growth control can get rid of software of the upper computer and normally proceed, and hidden danger brought by faults of the upper computer is prevented. Meanwhile, one upper computer can be connected with multiple lower computer control modules, so that crystal growth can be monitored in a more concentrated manner, and equipment and manpower costs are reduced greatly.