"Physics Encyclopedia" interactive virtual electronic books, with digital media interaction technology and augmented reality technology as the core, using Photoshop image processing, Unity 3D engine and Easy AR augmented reality tools, have completed the production of interactive electronic books for children aged 3-6 with the theme of physics popular science knowledge. "Physics Encyclopedia" interactive virtual electronic books are physics science books for children, which are rich in content and interactive. The electronic book shows the basic knowledge of mechanics, electricity, electromagnetism, acoustics and optics in physics in the interactive way of "voice explanation, audio and video & animation hands-on experiment" with pictures and texts, so that children can freely and actively cut into physics, so that they can read with interest, master the basic knowledge of physics in life, and form a scientific way of thinking that uses physical concepts to learn and think. The works finally include: executable folder files under the windows platform published in Unity, APK files under the Android platform, and printed and bound paper books (for traditional reading and AR functions).