How difficult is it to apply for a doctorate in Holland?

Foreign doctors mainly look at tutors. Every country has different requirements. The Netherlands should also contact the tutor of your target university. Then the tutor will generally ask you to submit the research results of the master's stage and the research direction of the doctoral stage. Anyway, the students who apply for doctoral degrees around me are generally international papers published at the master's stage or papers published by many authoritative academic journals in China. The rest depends on your grades to decide whether to want you or not. If you are good, doctors usually get scholarships and salaries. There is no need to worry about life. I suggest you go directly to the website of the target university you want to apply for in the Netherlands. Generally, there are email contact information of doctoral supervisors in various disciplines. Then there are many such forums in China, which is silly. You can ask. There are a lot of awesome people up there.

It seems that the Netherlands is not an immigrant country, so it is not so easy to immigrate to the Netherlands. When you talk about becoming a Dutch citizen, you have to have permanent residency in the Netherlands, that is, a green card, before you can apply. Anyway, Canada is like this.