Wiggins revealed he became addicted to cocaine after retiring from cycling in 2016 and is now 12 months sober.
The 2012 Tour de France winner and five-time Olympic champion will be working with Armstrong on his podcast, The Move, at the Tour de France this summer.
Wiggins told BBC Five Live that Armstrong has been “a great strength to me”.
The father-of-two has been open about his struggles since retirement and advocates for therapy as a tool to cope with life.