Abstract: Combining the characteristics of current network computing environment, research on new generation middleware technology which is suitable for open and mobile networking environments was presented. Based on the analysis to the key characteristics of today's network environment, new technical requirements for new generation middleware were identified. Subsectuently, some key challenges such as context awareness, environmental adaptation, open coordination,service discovery and pervasive interoperability for new generation middleware were discussed in detail. Further, some real solutions were showed as well.

Key words: Openness, Mobility, Context-awareness,Adaptability, Open coordination, Service discovery, Pervasive interoperability