It was the third consecutive time Boise State has topped the century mark at home, the first such feat in the program.
Boise State shot 56.1 percent from the field and had 20 assists.
The Broncos had a 14-0 first half run and led 52-21 at the half. They opened the second half with a 16-6 stretch and pushed the lead to 50 on a Zach Haney jumper with 7:44 left.
Nico Troplent scored 14 to lead Willamette.