After roaring to a 5-0 lead in the final set, Nadal closed out the match with a huge serve in one hour and 46 minutes leaving Tsitsipas to beat a quick exit from the stadium.
"I executed everything that I meant to and even more than I have expected", said the world number one after a flawless display put him into a first Melbourne decider since 2016.
Technically, Pouille made 27 unforced errors for the match, but really, all were forced, by Djokovic's formidable presence.
After dropping just four games, he said on court afterwards: "It's definitely one of the best matches I've ever had on this court".
Everything worked the way I imagined.
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Arsenal , though, got themselves back into the game before hald time , thanks to a tap in from Pierre-Emerick Aubameyang. Goliaths, two of the top six meeting this early is not normally welcomed by the club's fanbases.
It will be the No. 1-ranked Djokovic - owner of 14 Grand Slam titles, including the past two - against No. 2 Nadal, who's won 17 majors.
"It's been a great match, a great tournament", Nadal said after a breathtaking display of nearly flawless tennis.
"Uh, um... I don't know, mate", the Serbian said with a thick accent (of some kind).
Nadal also crucially seems to have put the injury woes that plagued him last season - and so often through his career - well behind him and appears in his best form in many a year.
Having never won a match in five previous trips to Melbourne Park, Pouille is now two wins away from the title and credits Mauresmo for the transformation.
After seeing Nadal drop just six games against Tsitsipas, Djokovic admitted that he went into his match against Pouille trying to concede fewer games than his great rival. "I think they're going to make a great match again".
There is no much to talk about the semifinal as the world no.1 was absolutely ideal to commit only 5 unforced errors in the entire match.
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Experience playing matches like this helped. "I like to play indoors". Both players are undefeated in Grand Slam finals. "It doesn't matter.
With the score at 5-1 in the final set and with Pliskova staring down the barrel at 4 match-points, it appeared nearly certain Williams would advance in the tournament. I was more aggressive. but suddenly I lost momentum and I was not playing the same game which was working", Pliskova said after the match."I stopped a little bit.
Djokovic will face second seed Nadal in a 53rd career meeting and eighth in the final of a Slam.
The two have never met in any global competition and there is a wide gap of 30 ranking spots between the 14-time Grand Slam champion and the first-time Major semi-finalist.
Even managed to deliver a second-serve ace.
The Japanese star fired 15 aces past her opponent to just three from Pliskova and 56 winners to the Czech's 20.
"It's amusing that we're going to play first time against each other", the 14-times Grand Slam victor told reporters. "I'm sure we're going to have a blast on the court".
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