What documents i need more to get her a student visa?

I am holding a residence permit here in china attached from my husband which is a foreign also. My sister is with me who is 10 years old in a primary level and i enrolled her in the (chinese school) my sister is with a L type now and i would like to apply a student one for her..i already have some documents like admission enrolled from her school and a temporary residence permit from the police. Already signed her application for china and the supplementary. I am recently holding a residence permit attached by my husband(foreign). The JW201/JW202..i showed it in the school and they dont know that.