Whether (AI) will be raised either production or performance or unemployment to bring human job market more advantages or more disadvantages? In my this book, I shall explain whether (AI) will bring benefits or disadvantages to human job market. I shall give example to let my readers to think how to support my final view point. Can robtics workers bring what positive or negative influences to office working environment ?Artificial intelligence had been developed to be applied to any service, working aspects, e.g. auto-driven cars. In the future, it may replace manual transport drivers in possible, e.g. non-manual driven tram, train, bus, taxi etc. public transport service. In factory warehouse environment, it can replace some workers to deliver any goods in warehouse. In shopping center service environment, it can replace security to do patrol jobs. I Why employers need artificial intelligence either assist or replace any office workers' tasks? Can AI only bring advantages to office working environment ? I shall indicate different kinds of industry office environment whether AI can bring only advantages or advantages and disadvantages to any kinds of office working envirnments. Readers can have more clear understanding whether AI is real suitable technologic tool to assist any office workers' tasks.