Abstract: Decorative art of book is considered as an integrate subject. It can deliver the books' information and try to attract consumers through various methods like colour, text, image. Colour is the most important one among all the factors, which can make the looker have different feelings after seeing that. Though there is difference originning from people's subjective thinking, and also depending on people's age, gender, education background, life style and religion belief, there still be some things in common, too. Colour is the most important one among all the factors, which can make the looker have different feelings after seeing that. Though there is difference originning from people's subjective thinking, and also depending on people's age, gender, education background, life style and religion belief, there still be some things in common, too. One thing is that people's taste may be similar from one to one. The wallop of colour is the most obvious one. When the readers walk into the bookshop, the first thing of the books that catches their eyeball is colour. Therefore, the way of using colour is extremely important in the decorative art of book. The quality of colour design plays an important role in many aspects.
Keywords：colour,book design, psychology
