Obtaining a passport for another?

Hello, I have a question. My fincee/girlfriend lives in Kaifeng, Henan and we are trying to get our visa's and passports all in line to travel. I have my passport and she is getting her's, but the visa part is confusing me like no other. She has asked me if it would be possible for me to help her get one for her so she can travel with me back to the USA after my trip out to her ends. I am having a lot of trouble figuring out how to get mine to go out to her in the first place and I have no idea how I would go about trying to help her with her to here? Do I need to contact the Chinese gov for her to get hers to USA or do I need to contact my gov? or is it even possible for me to help her get hers? oooohh so much confusion, any help would be great to clear up all this confusion on traveling to another country. thanks for the help.