Twenty-five-year-old Jeremy D. Hurtt is charged with assault and is being held on $5,000 secured bond.
Troopers say the 7-month-old girl was left with Hurtt on Tuesday. Police say Hurtt sent the child's mother a text message saying the child had fallen and bruised her face.
The mother went home and took the infant to a local hospital, where she was treated and released.
Troopers say the infant's injuries were consistent with someone punching or slapping her.