Mbappe opened the scoring with an early penalty and then grabbed a second simply before half-time after being set up by means of Lionel Messi to get his a centesimal goal in France's pinnacle flight for the reason that moving to PSG in 2017.
The France striker, who additionally scored 16 league goals for Monaco at the start of his career, does now not turn 23 until later this month.
The victory allowed PSG to increase their lead at the top of Ligue 1 to 13 points from Marseille, who won 2-0 at Strasbourg earlier on Sunday and have a recreation in hand.
Mauricio Pochettino's side in the long run eased to victory in a subdued surroundings on the Parc des Princes, with one end of the stadium closed as a punishment after the club's ultras allow off flares en masse during a recent recreation.
"It became a expert performance, and we deserved to win. Kylian changed into awesome another time," Pochettino, who has been criticised for his crew's performances this season, told broadcaster Amazon Prime.
"We are very pleased with our results, however we can enhance our performances," he admitted later.
Monaco had lost simply two times in their previous 12 visits to Paris in Ligue 1 and were the better side inside the first half of, however Mbappe's 2d goal right at the stroke of half-time become a hammer-blow from which they did no longer get better.
Niko Kovac's crew are eighth, five factors adrift of the pinnacle 3, with simply one more round of games to come earlier than France's short winter smash.
Sofiane Diop hit the submit for the principality outfit inside mins, however they soon discovered themselves in the back of.
Angel Di Maria went down inside the container, and the referee spotted a nasty through Djibril Sidibe after a review of the snap shots. Mbappe stepped up to convert the penalty.
