Paul Cherrett, 62, who was an assistant district commissioner for the Scouts in Bournemouth, is accused of nine counts of indecent assault on a boy under the age of 16.
He is also charged with two counts of inciting a boy under the age of 14 to commit acts of gross indecency.
Mr Cherrett is due to appear at Bournemouth Crown Court on 20 January.
It is alleged the offences took place between 1979 and 2002 at Scout camp premises where Mr Cherrett worked and at other locations.
Dorset Police said Mr Cherrett joined the Scouting movement in 1972 when he became an assistant Cub Scout leader for the 21st Bournemouth Scout Group until 1977.
He then moved into the assistant district commissioner role for the Bournemouth West District until 1988.
He returned in the role of district Scout active support member at Butchers Coppice Camp site in 2010, the force said.
Det Con Jonathan McKinney, of Dorset Police's Child Abuse Investigation Team, said: "Following our investigation into the allegations, the Crown Prosecution Service directed Dorset Police to charge Paul Cherrett with these offences.
"Throughout this investigation the Scout Association has been fully informed and has been working with Dorset Police."
A senior Dorset scout leader has been charged with sexual offences against seven boys.