Based on the foregoing basic introduction of information infusion technology, the paper primarily discusses practical applying problems of the technology. Firstly, the paper analyzes the present information processing technology used in the power system, points out its disadvantage and limitation. Then, combining with the new direction of the information technology and the development layout of the power system, the feasibility and inevitability are narrated. Finally, the paper points out the application foreground of the information fusion technology by the detail instance, additionally, the technology difficulties needed to be solved are listed.