IF my spouse already have F1 visa and i want to apply for F1 will i mention to the officer that my wife Has F1 visa ?

The answer depends on other questions that need to be asked and answered. Consult with an attorney. You can go either way, but since you were denied before, you are likely to be denied again if you do not know why you were denied and do not addrest that issue.

The threshold for securing any nonimmigrant visa is going to be higher based on the prior refusal. The Consulate will have access to your prior file and as well will examine the totality of your application including the presence of your wife on a F1.

Prior to Niles are difficult to overcome. The answer to your question depends on the reason for the prior denial and other factors. You should consult directly with an immigration attorney.