Among several drive programs using the same system resource, sorting control mechanism is established so as to avoid instability and crash caused by different control mechanisms and excessively complicated program during executing multiple drive program in operate system with multitask application and programming interface. The shared system resource distributing method includes using one independent program for controlling the common resource, and the independent program receives the request information from several drive programs, sorts and generates execution program list, affords the first drive program the control right to execute the first drive program, renews the execution program, retracts the control right from the executed drive program, and further executes other drive program.