A method for measuring time delay parameter of space-based measurement and control of aircraft is provided. In the process of aircraft interacting with ground control centers via satellites, time zeropoint, data start-up and transmission time, effective data transmission time and effective data reception time are recorded, and the time of aircraft and ground control center are unified through GNSS, and forward time delay parameters and backward time delay parameters are calculated, so that the purpose of timely sending forward control commands and accurately utilizing backward data can be achieved. The method has the advantages of high precision, simple calculation and clear steps.