Being motivated by the requirement of short evolution period, as well as business & IT alignment for the next generation of agile SOA enterprise architecture, this paper introduces a BPM+SOA-aligned modelling approach with iterative agile modelling process, based on The Open Group Architecture Framework (TOGAF) for SOA agile enterprise architecture development. Through content entity analysis, semantical aligning mechanism on basis of meta-model layer is applied to serve as the foundation of a TOGAF approach, bridging the gap between business architecture and information system architecture models.