How do China people go to work in Thailand?

It depends on what job you are going to do, because some jobs are reserved for Thai locals.

If you want to work in Thailand, the most important thing is 1 to have a letter of appointment from a company registered in Thailand. You should apply for a work permit in the labor department. You should apply for a residence permit at the immigration office. To apply for a visa to Thailand, you must get a work visa. There are other things. ......