According to the Orlando Police Department, the 28-year-old realist TV star, who appeared on season 24 and 27 of the hit series, was charged with battery in a domestic violence dispute that took place in an apartment building lobby on Saturday morning at 1:30am.
The blonde, whose mug shot was released, can be seen crying with makeup running down her face.
This is not the reality stars first arrest, with her first being reported back in 2010 for stealing a jacket worth $108 from a Florida mall.
Edorsson is reportedly facing a dating violence battery charge.
A security guard had seen the Kat and her boyfriend arguing in the lobby of an apartment building.
Then the star allegedly hit her boyfriend on the left side of his face. It was added that her male friend did not 'retaliate' in any way.
Police arrived to the location shortly after 911 was called.
The boyfriend, who has yet to be named, asked officers to not arrest Kat.
The victim said that he and Edorsson 'had been in a dating relationship, sexual in nature for approximately six months,' it was stated in the police report.
According to the police department, 'if the primary aggressor can be determined, it isn’t necessary for the other person to press charges under Florida law.'
Kat was identified as the primary aggressor by the guard, which means she had to be arrested.