Based on the progress of research development and practical work of Dr. What-Info I and II prototypes, the paper would proceed to explore the extension system of Dr. What-Info III with big data analysis techniques. This study can not only enhance the precise, correctness, and integrity of cloud information providing, but also effectively complete the five elements of the Intelligence era to reach the feasibility studying of Dr. What-Info system for extending its system scalability, and correspondingly come to implement the intelligent multi-agent system: Dr. What-Info III with the accurate, rapid, robust, pervasive and active properties of Mobile Information consultation and sharing.