Shotwave communication is the only telecommunication way which is unlimited by network hud and active relay systems.It is widely applied in telegram,telephone,low-speed fax communication and broadcast.Shotwave signal is the base of communication environment.It is important to develop shortwave communication equipments and simulate electromagnetic environment.This paper discusses shortwave signal modules based on quadrature modulation method which is designed by using AD9856.In order to research shortwave communication and simulate electromagnetic environment,The module provides some reference.