Abstract: Through analysis of problems in the traditional sequencal design,the control structures integrated design of a space deployable mechanism is presented,in which parameters of structure and control are simultaneously selected as design parameters and systematically optimized,based on objective functions.A integrated design model of the space deployable mechanism is developed,and the analysis results show that the integrated design methodology is superior to the traditional sequencal one.The technology will provide theoretical base and design methods for new generation space spacecraft.