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Normative and ease-to-use assembly framework and sample are the foundation of deep application development of microprocessor, but the complexity on assembly programming, and the short of assembly program data and sample program on 32- bit ARM Cortex-M4 microprocessor enlarged the difficulty of study and development. On the basis of in-depth analysis of ARM Cortex-M4 assembly instructions system and addressing modes, the paper took KK series MCU of NXP company as a model, and proposed hierarchical architecture engineering framework modeling idea according to the ideas of software engineering and component design theory. Then the paper constructed component-based assembly framework based on ARM Cortex-M4 microprocessor and made the GPIO driving component. The design and test results of the light blinking sample engineering show that the assembly framework is normative, practical and easy to use, which can reduce the learning difficulty of embedded assembly language. The framework can provide reference to the industry on assembly development based on ARM Cortex-M4.