After the COVID-19 bursts out, all the world has been affected and the worldwide economy is struck because people cannot go out freely and more people tend to stay home due to the coronavirus. Therefore, it is important to think about some solutions to let the citizens travel freely as well as keep them safe. That's one of the reasons why the vaccination passport occurs. Although there are some quite successful vaccination passports, there still exist different problems for the passport. Privacy protection, less complexity, less consumption are the main advantages of our vaccination passport. Because most scruples of the vaccination passport are that whether citizens can use it without submitting much personal information or whether it can prove that people have been vaccinated simply, our vaccination passport aims to increase these parts compared to other vaccination passports. We use blockchain technology which is a kind of decentralized technology to keep individual privacy. Meanwhile, we need less information from the user but a picture. To simplify our vaccination passport, there only are 2 main parts which are the user part and the hospital part. To show the identity that you have been vaccinated, people just need to show the QR code generated by the system and the color of the system will show whether you have the right to go out. All in all, our vaccination passport realizes privacy protection, less complexity, less consumption based on the blockchain and p2p network technology.