1. According to the length of stay, it can be divided into: short-term visa and long-term visa. A short-term visa is for a stay of less than 90 days abroad, and a long-term visa is for a stay of more than 90 days abroad.

2. According to the number of trips abroad, it can be divided into: single entry, second entry and multiple entry visas

3. According to the number of applicants, it can be divided into: individual visa and group visa

4. Port visa (also known as visa on arrival). Generally speaking, to apply for a visa on arrival, the inviter needs to apply to the immigration administration department in their home country first. After approval, a copy of the certificate will be sent to the visitor. With this certificate, the visitor can leave the country and go to the destination country.