For his The Situation wants to stop being exploited by others. Namely his father.

In an effort to get his bigmouth dad, Frank Sorrentino, to stop blabbing about him and his "selfish ways," Sitch filed a suit against Sitch Sr. in a Miami court today.

Wanting his dad to put a sock in it is one thing, but what legal grounds does he have? Frank's website, TheConfrontationSite, infringes on his rights, sayeth Sitch.

Mike says his dad's hampering him from ... doing whatever it is he does.

According to the docs (filed in Florida since Frank resides in Boca Raton), Mike, who's raking in ca$h with appearances and endorsements, also wants his father to stop attempting to damage his reputation, which he is "actively" trying to do.

Situation, who's seeking unspecified damages for unfair competition and business practices, is asking the Miami federal judge to force his father to STFU ASAP, and prevent him from using Mike's name and likeness. Period.

Last week, Frank went off on Mike, bashing his son for more or less being a sellout and abandoning the Sitch family after he GTL'd his way to stardom.

[Photo: Fame Pictures]