Krasnodar, who started with Kristoffer Olsson and Marcus Berg, got off to a tough start against Chelsea.
After just a quarter of an hour, Timo Werner collapsed in the penalty area and the referee awarded a penalty.
Jorginho shot in the post.
However, Chelsea would take the lead before the first half was over.
Callum Hudson-Odoi hit that from around 35 yards out and Matvey Safonov and couldn't do anything about, dipping and swerving, it did him all ends up.
Three goals in the last quarter
It was a late target explosion in Krasnodar.
Chelsea scored three goals in the last quarter.
Timo Werner made it 2-0 on penalties and three minutes later Hakim Ziyech made it 3-0.
Christian Pulisic made it 4-0.
Viktor Claesson was missing due to injury.
It was Krasnodar's first home game in the Champions League ever.