First of all, you are a wonderful boyfriend for being strong and intelligent enough to stick by your girlfriend during everything. It can be a long, drawn-out process being recognized as her true self.
I honestly don't know what the situation is in China, but I can hopefully educate you a little bit, if you don't mind.
Your poor girlfriend may always be harassed as long as she's in China. Many Asian countries seem to be a bit behind in accepting the fact that "not only have there always been transgender people, but we're not out to hurt/fetishise anyone/be perverted to anyone/etc." Most of us simply wish to live our lives as the gender we should have been born as. Unless she goes stealth (hides the fact that she's transgender) and can pass as a women, harassment should be expected.
I'm FTM, but the feelings are the same. I expect to sometimes be harassed simply because I'm trans, so because of it, I'm extra careful when I go places. I carry pepper spray and a personal alarm because of this, something you might want to suggest to her.
Gender Replacement Surgery (GRS) is a major surgery, and one that not every trans person wants to/needs to undergo, or sometimes they simply can't afford to have.
I have yet to have GRS, but I had my name, all of my IDs and even my passport legally changed over to male. It took doctors' letters, and patience, but it's doable. I'm now recognized as a legal male, and I get treated as such, especially since my voice has dropped, and I have a (slight) beard. Here in the US, in many states, having GRS is not a necessity in order to be legally recognized as your true gender.
I hope that your girlfriend is doing her research in what is needed in her country in order to legally be recognized as female. I'm sure you can help her in that regard, it seems like you already are.
I wish both you and her the best of luck.
Ryuichi
