Colour-changeable book

The utility model discloses a colour-changeable book, which is composed of a plurality of pages of book pages which are formed by the thermal pressure of two layers of EVA material, wherein patterns of at least one page surface are provided with a layer of colour-changeable printing ink by silkscreen. A layer of soft fiber is clamped among the book pages. The colour-changeable book can be used as an ordinary book for turning and reading, and can also be used as a toy for playing in water. Particularly, after the colour-changeable book is placed in warm water, the colours of the patterns or characters made by silkscreen by the colour-changeable printing ink can generate changes. After the colour-changeable book is taken out of the water, an original colour can also be recovered for exciting the interest of infants.