The main and extra time of the meeting, which took place in Belfast at the Windsor Park stadium, ended with a score of 1: 1.
The game was served by the Russian referee Sergey Karasev.
In the 27th minute, the London team came out ahead after a goal by Hakim Ziyech.
On the 73rd, Gerard Moreno restored equality.
In the penalty shootout, Chelsea's players turned out to be more accurate - 6: 5.
The decisive blow was dealt by Antonio Rudiger, after which Kepa Arissabalaga repelled the blow of Raul Albiol.
Thus, Chelsea became a two-time trophy winner.
Earlier it was reported that Chelsea coach Thomas Tuchel received a yellow card for arguing with Karasev.