Abstract: Pervasive computing is the result of post PCage ,and it is affecting many aspects in computer science Based on the thoughts of chemical combination ,a kind of thought of molecule service is proposed in the domain of the wired pervasi vevid eoservice And a wired net work hierarchical architecture for this thought is also constructed Moreover ,an error control algorithm is devised to handle the package- losing situation in the process of the communication between two service molecules The simulation experiment demonstrates that theerror control algorithm is effective and the wired pervasi vevideo service architecture based on molecule services can decrease the system’loadobviously