The pair played together at Dundee United and have kept in touch since hanging up their boots and moving into management.
In fact, McInnes was one of the people Archibald turned to for advice when he took over from Jackie McNamara at Firhill last season.
But he says the friendship will be put to one side for 90 minutes when Thistle host the Dons in the Scottish Premiership on Saturday.
Archibald said: "I'm looking forward to seeing Del. He's one of the guys I asked for advice from when I got the job.
"He's a good lad and a good friend as well. He's always willing to give you advice.
"I've not phoned him for a couple of weeks as it's different now that we are in the same league together.
"But he was also one of the first guys on the phone when I got the job to congratulate me.
"Del is very good at his job, I know that, but I would love to get one up on him.
"It would be a great result for us to beat any Aberdeen side here."
Newly-promoted Partick have enjoyed a positive start to life back in the top-flight and Archibald is now keen for them to register their first league win at home.
He added: "It would be great. We had such a good home record here last year. It's something we built on and won the league.
"We are desperate to get three points. We know it will be tough against a very good Aberdeen side.
"They've got pace and power all over the pitch. We know how tough a game it's going to be."