Mars took home awards for best R&B/soul male artist, video of the year, album of the year, song of the year and best dance performance.
It was also a big night for Sza, who won for best new artist and best R&B/soul female artist.
Solange, who led all nominees with seven nods, only walked away with a single award -- the Ashford & Simpson songwriter's award which she shared with Troy L. John and Raphael Saadiq for their work on "Cranes in the Sky."
Here's the complete list of 2017 Soul Train Awards winners:
Best new artistSza
Best R&B/soul male artistBruno Mars
Best R&B/soul female artistSza
Soul Train certified awardBell Biv Devoe
Video of the yearBruno Mars -- "24K Magic"
Best gospel/inspirational awardLecrae
Album/mixtape of the yearBruno Mars -- 24k Magic
Rhythm & bars award (formerly best hip-hop song of the year)Cardi B -- "Bodak Yellow"
Song of the yearBruno Mars -- "That’s What I Like"
The Ashford & Simpson songwriter’s award"Cranes in the Sky" -- Written by: Troy L. John, Solange Knowles, Raphael Saadiq (Solange)
Best dance performanceBruno Mars -- "24K Magic"