The invention provides an inter-satellite communication system used for realizing high-dynamic and low-delay space teleoperation. The system comprises a first satellite A and a second satellite B. The inter-satellite communication machine of the first satellite A performs digital processing on a received radio frequency signal and then payload data and entire satellite telemeasuring data are recovered and transmitted to users; the inter-satellite communication machine of the first satellite A performs digital processing on a received teleoperation instruction and then transmits the teleoperation instruction to the second satellite B in a radio frequency signal mode; the inter-satellite communication machine of the second satellite B performs digital processing on the radio frequency signal and then the teleoperation instruction is recovered and transmitted to the related users to perform corresponding teleoperation tasks; and the inter-satellite communication machine of the second satellite B performs digital processing on the received payload and the entire satellite telemeasuring data and then transmits the data to the first satellite A in the radio frequency signal mode. A continuous and bidirectional high-dynamic inter-satellite link is established so that the low-delay requirement of the space teleoperation tasks is met.