The 29-year old has played 142 times for the Warriors, including 17 appearances under Dave Rennie last season, the new Head Coach selecting Fusaro for the Coaches Award at the club's end of season dinner in May.
The Scotland international made his debut for his country against England in 2014 going on to play against Italy, Argentina and South Africa.
A product of Bell Baxter High School and the Howe of Fife Rugby Club he won the Bell Lawries Scottish Schools Cup and the Youth League Final for his school and club respectively in 2007.
Last season, the flanker ran out for Stirling County in the BT Premiership when not playing for the Warriors and was also an Assistant Coach at the Bridgehaugh club helping them reach the BT Cup Final.
Speaking to glasgowwarriors.org Chris Fusaro said: "It's an absolute delight to sign again for me and the family. I've got two young kids who were born in Glasgow, this is definitely home so to be able to stay another year is a real privilege.
"It was really good last season having a different perspective from a new coach coming in, the brand of rugby he has got us playing really excites me.
"Physically I feel the best I have in the past four years. I've managed to stay relatively injury free and am raring to go for the start of the season."
Glasgow Warriors Head Coach Dave Rennie said: "Chris won our Coaches Award last year which is dished out to the person we feel best represents the values of the club on and off the field.
"His contributions around the team are massive. From a playing perspective he's setting personal bests for speed and strength and had showed good form on the park last season.
"He was a must in our 23 for all the big games at the end of last season and it was important for us to find space in the squad for Fuzzy and we're rapt that we've been able to do that."