Kaminsky netted 17 of his total in the second half for the Badgers (21-5, 8-5 Big Ten), who jumped out to a big early lead and cruised to their fourth straight win.
Sam Dekker added 15 points and nine rebounds.
Josh Gasser helped out with 13 points for Wisconsin.
The Wolverines (18-7, 10-3) missed an opportunity to leapfrog Michigan State for first place in the conference with their third loss in five games.
Caris LeVert led Michigan with 25 points.
Nik Stauskas (11 points) and Glenn Robinson III (10) also reached double figures.