Abstract: Based on the engineering practice of flight test recently for the new type of fighter, referred to the foreign experience, the flight test characteristics of modern fighters was described,including sorties and period,aboard acquisition system,ground data acquisition system,ground support facilities, flight with other types of aircraft, organization and management ;The flight test technologies which should be emphasized in term of the fly-by-wire,including stability margin of flight control system, flutter and aero-servo-elasticity,pilot in-the loop flying qualities and high angle of attack technologies .Some problem in F/T was discussed.