This research explores that the model of knowledge management and web technology for teachers' professional development as well as its impact in the classroom on learning and teaching, especially in pre-service teacher's competency and practices that refer to knowledge creating, analyzing, nurturing, disseminating, and optimizing process as part of the learning quality improvements. In this process, web technology particular web-based learning has a necessary role to drive and integrate knowledge and learning activities within the knowledge management process (I-Can do model). In this respect, this research aims to study and develop the appropriate model of knowledge management via web-based learning by the 18 expert's consensus and evaluate competency of the 64 pre-service teachers that divide and random assignment into 2 equal groups (control and experimental group). The competency assessment tools are conducted the volunteer participants' competency particularly in knowledge, attitude, and skills approach. The research results exhibited that the model of knowledge management via web-based learning was appropriated and enhanced the pre-service teacher's competency. (Contains 3 figures and 3 tables.)