How to get a Korean long-term visa? My mother is a Korean from China. She was granted permanent residence in Korea F5 and opened a shop in Korea.

It's definitely easier to visit relatives in Korea and apply for a tourist visa. First, if one of your parents or grandparents is Korean, you can also apply for a permanent residence certificate, that is, dna testing and a property certificate of 20 million won. You must be at least 22 years old, remember that there must be only one party. If you don't have Korean nationality at home, the common method is to take a skill test and sign up for a Korean major, so you can stay in Korea and change your visa. After graduation, I will renew your employment visa once a year. You can stay here for a long time. If you have strong learning ability, you will take the exam in January. If you have seen anything to learn in the weak years, you can learn bread and instruct computers and so on. You can only learn Korean. There are two ways to apply for Korean nationality. It is not recommended to apply in China. This is probability luck. There are also employment visas issued by Korean companies to accept invitations. There are many that are usually renewed once a year, but they don't seem to suit you.