Symonds was ruled out from Bangladesh series when he we went fishing instead of attending a team meeting. Symonds has promised to change his ways after being left out of the Australia's high profile tour of India.
He took the first steps back with his Gold Coast Dolphins club team last weekend and will continue his comeback against a development Knight Riders squad from India.
"From my perspective, to have one of the most exciting players in the world in a team I am leading is a thrill," said Simpson, who's taken over the leadership from India-bound Jimmy Maher.
"The past three months has been fantastic for me.
"Despite what might have happened elsewhere, I haven't noticed any difference in him.
"He's been a great support and I know when he puts on the Queensland cap again it will mean the world to him" said Simpson, who is the captian of the Queensland team.
"He's called me a number of times over the past few months since I was awarded the captaincy to offer advice and see if I needed any help so he has been outstanding for me.
Symonds broke his silence over his latest misdemeanour last Thursday and then opted to make his return in a low key game for the Dolphins on a suburban ground last weekend when his Australian teammates were flying out to India.
The fallen star of Australian cricket opened up saying he wanted to become a better person and win back his place in the Australian team.
Symonds is expected to play in two or three of the six Twenty-20 games against Knight Riders before the Bulls launch their Sheffield Shield season against Tasmania at the Gabba from October 10.
The Knight Riders, the Indian Premier League, are being prepared by former Australian and Queensland coach John Buchanan.