This paper presents two design schemes for optical fiber transmission system for radar signal. In the first scheme
the digital and analog signals are transmitted respectively. The second scheme adopts all digital transmission. The system based on the first scheme has been succesfully developed and used in the radar of a certain type
and the system based on the second scheme is in the course of development. This paper also describes the key technologies for the system
and provides several optical fiber transmission schemes for radar signal suitable for long distance applications.