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This paper explores Worldwide Diffusion and Shift of ISO standards are based on world culture perspective and other perspective. Debating on diffusion and shift that is based on neo-institutional perspective, world culture performs as an important factor. As a tentative conclusion, the author presents (1) nations that are exposed more and longer may adopt ISO certifications (ISO 9000, ISO 9001:2000 and ISO 14001) (2) looking into adoption of ISO 14001 through learning effect and resource based view, ISO 9000 series adopters would take more ISO 14001 certification. In conclusion, when researchers explore diffusion, it is good for them to consider world culture and global norm. And as investigator studies shift of standards, they should observe changing procedure from efficiency to legitimacy