According to the design of aerodynamic configuration with variable forward-swept-wing, two kinds of variable forward-swept-wing configurations in which there are slight differences on the transition method of nose and canard are given. The aerodynamic results show that the delta-wing is better for breaking through a defense area in a combat, and the second configuration with integrated canard and nose leading edge is more competitive. The study of bistatic RCS of the two kinds of aerodynamic configurations shows that the RCS of the variable forward-swept-wing configuration in most ranges of azimuth is below 0dBm2, the lobe of wave peak is narrow and not easy to be discovered and tracked continuously. By comparison, the stealth characteristics of the leading edge's configuration are still better. So while optimizing the design of configuration with variable forward-swept wing, it is rational to adopt the design of configuration with integrated canard and nose leading edge.