I am in f1opt my wife rejected f2.

Currently I am in f1(OPTstart date 07may2017) my wife f2visa refused on 02nd may 2017 Vo questioned my wife your spouse not job so I am refusing visa. gave her 214(b). please tell me what’s the problem

So you don’t have a job yet ? If you don’t, you need to prove that financially you can support her stay in USA.