A visa for my girlfriend

Hello, my name is Rodolfo, I am a teacher in Argentina and I obtained a work Z to work in a school in Chongqingn. my work starts in November and I'm going to stay for 10 months. But I have a problem, I want my girlfriend to accompany me but she does not have a visa. How can I get a study X from her? Are there courses or studies for 6 months or more to get the study X? I would greatly appreciate the help and information. Thank you very much.