The 26-year-old has gone on to make more than 100 appearances for Gloucester since graduating through the club's academy ranks.
And Morgan, who has been capped twice by England, is delighted to have joined the likes of Jim Hamilton, Will James, Charlie Sharples and Henry Trinder in committing to the club.
"I'm over the moon really," he told the club's official site. "I've been here for eight seasons now and I'm probably classed as a bit of an old man!
"It's a great club to be at and I'd be happy to spend the rest of my playing days here. When the contract was offered, I didn't hesitate at all.
"It was a short process and I'm thankful things have been done. Getting it out of the way means I can focus on the rugby.
"I enjoy the way we play our rugby and, with the players we've re-signed and the players that are going to be signed, I think the future is bright."
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.