The United boss saw his champions round off the campaign with a 4-2 win over Blackpool that means only two points were dropped at home all season.
The goals have flowed at Old Trafford as Sir Alex utilised his squad to great effect with one last match still to come at Wembley next Saturday as Barcelona stand in the way of another Champions League success for the Reds.
"It's special," the manager told MUTV. "This is a particularly special one because it means we've won the title more than anyone in the country.
"It's history and great for the tradition of this club so I'm really pleased about that."
United finished nine points clear at the Barclays Premier League summit with the boss conceding: "It' didn't feel that way a couple of weeks ago!
"The players have been great, there's a great work ethic in the team. I think they deserved it because there were a lot of great performances. I'm dismissing all that nonsense that it's not a great Manchester United team. It's a great feat winning this league.
"I think our target was to do our best. Yes, we've had some disappointing games away from home but the home form has been fantastic. Another four goals today, seven against Blackburn, five against Birmingham and we've beaten Chelsea, Liverpool, Arsenal and Tottenham all here. They're top teams so it's pretty good that."