He started dancing at the age of four after Chmerkovskiy's parents admitted him in a school of exquisite education. The school seeks to educate children to become young gentlemen or ladies, and the education comprised of ballroom dance and manners. He finally started competing in ten-dance, which includes both Latin dances and ballroom. As a child, Chmerkovskiy was also into sports and actively participated in soccer, tennis and swimming.
Chmerkovskiy participated as an adept dancer on Dancing with the Stars for fifteen seasons. Chmerkovskiy made his first appeared in the second season of the television series Dancing with the Stars and paired with actress Tia Carrere. In 15 appearances on the show, Chmerkovskiy stood finalist four times, two third place finishes and two runner-ups. In 2014, Chmerkovskiy partnered with Olympic ice dancer Meryl Davis and finally won his first Dancing with the Stars title.
After winning his first ever title with Davis, Maksim announced that he will not be participating anymore on the show as a dancer.
He was engaged to Karina Smirnoff for 9 months in 2009. In 2012 he dated Peta Murgatroyd but the couple decided to split after 10 months. In 2013 he was in relationship with Kate Upton. He once again united with Murgatroyd in 2014 and the couple got engaged in 2015. The couple has a son Shai Aleksander.