The Bantams return to Wembley on May 18 after beating Burton 3-1 on Sunday and 5-4 on aggregate.
Back in February they were hammered 5-0 by Swansea in the Capital One cup showpiece, and Parkinson insists he will prepare his team the same way.
"We will treat it exactly the same and we will go down there with the same mentality," said Parkinson.
"When we played Swansea we knew it was going to be tough. This (the play-off final) will be a different kind of game but it will still be tough.
"It will be about what we do and we will do what we always do, which is keep going and give it our absolute all until the very last minute.
"That is what we have done in every game this season and we will do the same at Wembley and hopefully give ourselves a good chance of being promoted."
Bradford were 3-2 down from Thursday's first leg at Valley Parade, but Nahki Wells' double either side of James Hanson's goal sent them back to London.
"We didn't play well in the first half, that first 45 minutes was probably as bad as we've played. Burton are a good team but I knew we could play so much better and we improved at the start of the second half.
"Although the result was the most important thing, I wanted the players to put in a performance for the fans because they have been magnificent all season.
"They have followed us all over the country all season at some expense. They have been so loyal and I wanted to reward them today. I wanted the lads to do them justice and I think they did that in the end."