This paper presents a context-aware multi-agent cooperative design system framework. It analyses the related work of multi-agent cooperative design system and context-awareness computing first. Then, it presents the architecture of a multi-agent cooperative design system and the structure of a design agent in cooperative environment. Subsequently, it introduces the XML-based context modelling, capturing and processing in the environment. Finally, the design process is illustrated by a gear reducer design instance. The purpose of the paper is to bridge pervasive computing with agents through context-awareness and apply it in cooperative design.