Abstract: Aiming at the limitation of the automatic deployment algorithm of software radio application, the paper puts forward a more general system model which integrates the processing resource requirement, memory resource requirement, bandwidth resource requirement and operating environment requirement into the application Deployment process; using a variable window-based deployment algorithm to achieve the purpose of minimizing system resource consumption. The simulation results show that the constraint of runtime environment has important influence on the application deployment. In addition, the larger the window length is, the better the algorithm performance is.