8:33 AM PT -- Cops say Lynette ADMITTED to throwing an object at the back of LT's head -- 'causing a 3-inch laceration ... at one point saying, "Yeah, I beat [his] ass. I made him bleed."
Lynette later told officers she was just being sarcastic.
Cops also say alcohol was involved.
Cops say Lynette was a terror when they arrived to the scene -- cussing at them and trying to strike them with her arms and legs.
Despite the craziness, cops say LT told them he does not wish to prosecute.
Lynette was arrested anyway and faces domestic violence and resisting arrest charges.
Lawrence Taylor's wife, Lynette Taylor, has been arrested for domestic violence ... after the NFL star told police she attacked him during an argument in Florida ... TMZ Sports has learned.
42-year-old Lynette was arrested on Thursday on 1 count of domestic violence and 1 count of resisting arrest.
We've learned ... Lawrence told cops Lynette hit him in the back of the head causing a minor laceration.
Lynette denied the allegation -- telling officials, "That's a lie. My husband is a 300 pound linebacker."
The judge has already ordered Lynette to stay at least 500 feet away from L.T. for the time being -- no calls, texts or emails either.
Officials also noted that she has a history of alleged violence -- she was arrested at least 3 times (1991, 2001, 2008) ... but most charges were dropped.
Lawrence and Lynette were reportedly married in 2007 and have kids together.
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