Is the original visa still valid after the passport is changed?

I can't. After renewing your passport, you need to apply for a new visa.

Visa is a kind of license issued by a government agency of a country according to its own laws to foreigners who apply for entry, exit or transit. According to the principles of international law, any sovereign country has the right to decide whether to allow foreigners to enter or leave the country, and to issue visas, refuse to issue visas or announce the cancellation of visas already issued according to its own laws. The visa is usually attached to the passport or other international travel documents held by the applicant. Under special circumstances, valid passports or other international travel documents can be written on a separate sheet. With the progress of science and technology, some countries began to issue electronic visas and biological visas, which greatly enhanced the anti-counterfeiting function of visas. Visa plays an important role in checking and controlling entry-exit personnel, protecting national security and preventing illegal immigrants and criminals. Passport is the holder's nationality and identity certificate, and visa is the permission certificate of a sovereign country to allow foreign citizens or their own citizens to enter, exit or transit. Visas are generally endorsed on passports, some are endorsed on other travel documents instead of passports, and some are issued separately. For example, immigration visas in the United States and Canada are A4 paper, and Singapore also issues separate paper visas to foreigners. Generally speaking, a visa must be used at the same time as a passport to be valid.

Passport is a legal document issued by a country to prove the nationality and identity of its citizens when they enter and leave the country and travel or stay abroad. The word Passport means port pass in English. In other words, a passport is a passport for citizens to pass through international ports in various countries. Therefore, some countries in the world usually issue passes instead of passports.

legal ground

Regulations of the people's Republic of China on passports and visas

Article 9 China citizens and foreigners who go abroad or live abroad for personal reasons must apply for Chinese visas for exit, entry or transit, and the specific measures shall be implemented in accordance with relevant regulations. China citizens who go abroad on business do not need to apply for an entry-exit visa for China when they enter or leave the country with valid passports. Citizens of countries that have signed visa exemption agreements with China shall be handled according to the agreements.

Article 11 The validity period of diplomatic passports, official passports and ordinary passports shall not exceed five years. Each passport can be extended twice, and each extension shall not exceed five years.

Article 12 When the identity, marital status and accompanying personnel of a passport holder change, the passport must be filled out and issued.