This product is a smart change storage tank specially designed for children, which can store paper money and Shuyu currency at the same time, which is intended to help children develop good financial habits. The work is inspired by the Shang Dynasty copper statues of Bo Bao in Hunan Province: Pig Zun, Niu Zun and Ancient Poker Man, which extract the physical elements of ZhuZun and NiuZun in the shape design and transform them to make it more interesting in the cultural relics of the treasure. This design adopts the form of "smart piggy bank + mobile App" software and hardware combination, which can be jointly managed by parents and children, tailor-made financial plans for children, and accompany children's growth.