The criminal charge was laid after an investigation by the Edmonton Police Service professional standards branch that was then reviewed by Alberta Justice.
It stemmed from a complaint that the officer allegedly used excessive and unlawful force on someone during an arrest on Nov. 19, 2013.
Police did not say if the person arrested was a man or woman, what the person was arrested for, or the circumstances of the arrest.
Const. Kelly Stel, a 13-year member, has been charged with assault.
He has been assigned to the operational support division.