Seamen's certificates generally refer to China people's certificates and China seamen's certificates.

Seafarer's Certificate of the People's Republic of China: It is a valid identity document for seafarers with China nationality to enter and leave China and pass abroad.

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

The difference between seaman's certificate and passport;

Seaman's card is a necessary document issued by the Ministry of Communications. When sailing to another country, the immigration department needs to check and sign a visa on the seaman's card, and it needs to be carried with it when playing in the fields. Seafarers need a visa on the seaman's card to go abroad and return home. Passports are necessary for ocean-going sailors. In some countries, such as the United States, Singapore and Indonesia, you must have a passport to get a visa and go abroad. Passports are applicable to all China citizens who go abroad, while seamen's cards are only applicable to ocean-going crew members.