The purpose of this study is to analyze the design and implementation of CPI in the bank, to identify the benefits
and develop a better understanding of CPI impact on banking competitiveness, to build processing bank system
(PBS) effectively. The study analyzed and improved the CPI theoretical from some aspect of the core ideas,
theoretical system, and its applications. Then it proposed a conceptual model of process improvement: CPI-PBS
hybrid deployment model. LSS was applied as the main tool of CPI to build PBS dynamic optimization system
and provided an empirical example of how CPI constitutes better performance. Through analysis, the research
drew some conclusions as below. 1, the application of CPI theory to service industries has a good effect, but it
should seriously consider the applicability and feasibility. 2, the process improvement in commercial banks is a
dynamic, continuous forward process, and it can get a good synergy effect that the strategic integration of CPI
theory and PBS thinking. 3, to realize the strategic goal of PBS, LSS alone was not enough. It should integrate
the concept, model system of CPI with the theory and methodology of LSS. Then it found out the difficulties and
countermeasures of application of CPI to management banks.