In modern society, smartphones have become an important role among individuals and each person can not live without those things which exist in all of our daily lives. However, there are so many issues with smartphones that who are addicted to these small gadgets, especially children who can not help to control themselves to check information, chatting online, or play phone games. I believe that if there are no feasible restrictions to guide kids and let them know how to use smartphones in a reasonable way, this phenomenon would lead to worse results for children even the whole society.