The Arsenal midfielder sustained a hairline fracture on the eve of the Premier League season and has been out ever since, suffering a number of setbacks in his recovery.
But his return is a welcome boost for the Gunners as they attempt to mount an improbable title bid.
It is also a positive for Wilshere's hopes of making the England squad for the European Championships.
And the midfielder posted a picture of him from training onto Instagram with a determined message.
The caption said: "Back doing what I love the most, hard work starts now to get back in the team and in that Euro squad!!"
Wilshere's boss Arsene Wenger believes England coach Roy Hodgson should gamble on taking the 24-year-old to France.
A photo posted by Jack Wilshere (@jackwilshere) on
“When you’re a national team coach, you can take a gamble on one player but certainly not on five. You can certainly take a chance on just one player,” he said.
“You want your players to compete. When you’re a footballer you want to compete at the top level and what is important is that Jack, who is frustrated enough, regains confidence.
“It’s very important for his confidence that he can go to the Euros and he can play. It’s also important to have a player of his quality available. I’m cautious with him now but to be back fully competitive, it will take a few weeks.”
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