Is it necessary to apply for a visa to go abroad? Can I go abroad with my passport?

The China passport issued to you by the government of China is your ID card used abroad, which shows that you are a citizen of China. And your entry permit when you return to China. Otherwise, how do border inspectors know that you are from China? A visa is a permission given by other countries to enter their country and stay for a certain period of time, which is different from a passport. You can't enter that country without a visa from that country. Passport only, no visa, where to go after leaving China? Unless there is an agreement between countries, you can enter the country visa-free and stay for a period of time. After emigrating to other countries, many China people changed their nationality and became citizens of other countries, giving up their passports in China and changing them into passports of other countries. Although they still keep their domestic identity cards in China, they are no longer citizens of China, so they can't enter China at will. They must apply for a visa from China to enter China. At present, there are not many countries that can enter China visa-free, so generally speaking, yes, you need to have a visa for the country you want to go abroad (you need another pass to go to Hong Kong, Macao and Taiwan), and you can't just go abroad with your passport.