Wade marked his first England appearance in Sunday's non-cap game against the Barbarians at Twickenham by scoring a try.
The 21-year-old claimed 14 touchdowns for Wasps during his first season of senior rugby, confirming himself as one of the Premiership's most lethal finishers.
Despite missing a chunk of the campaign through injury, he still ended it as the league's second highest try-scorer.
"Wasps are a great club for developing young players, and I love playing regularly alongside the guys I have come through the academy with," Wade said.
"In the next few seasons, hopefully together and alongside some of the great signings we have made, we can make a real impact in all competitions."
Wasps rugby director David Young added: "Christian is a special talent and he has been outstanding for us this season.
"We've got a great core of young English players emerging here who are only going to get better and better. and it's great to get these guys committing their long-term futures to the club."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.