Aaron Torgalski, 39, and Robert McCabe, 32, pleaded not guilty in Buffalo, New York. They were released without bail, and face up to seven years in prison.
On Thursday, they were seen shoving Martin Gugino, who fell backwards on the pavement and started bleeding.
He remains in a local hospital in a serious but stable condition.
The two officers were enforcing a curfew in the city as a result of protests since the death of George Floyd in police custody in Minneapolis last month.
