My wife Doesn't work so she has no income. Do I file jointly or seperatly?

[cccollins77]

Also can I claim her as a dependent?

[xmasbaby0]

No.  You never claim a spouse as a dependent.   File a joint return.

Married Filing Jointly is usually better, even if one spouse had little or no income. When you file a joint return, you and your spouse will get the married filing jointly standard deduction of $25,100 (+$1350 for each spouse 65 or older)  You are eligible for more credits including education credits, earned income credit, child and dependent care credit, and a larger income limit to receive the child tax credit. 

[Chrispy1]

File jointly. TurboTax will guide you through the process.