The 28-year-old, who has also spent time at Saracens, Bristol and Harlequins, will compete for a starting position in the side with Welsh internationals Rhodri Williams and Tavis Knoyle and Wales Under 20 starlets Dafydd Buckland and Dan Babos.
“Luke is an experienced and talented scrum half who I know well from our time together at Worcester Warriors. He will provide competition at scrum half alongside Rhodri and Tavis,” said Dean Ryan, Director of Dragons Rugby.
“There’s young Welsh talent at the Dragons, and we will give them chances to perform, however, it’s crucial for their development that they get their opportunities at the right time. We’re excited to see the impact Luke can have with us during this loan.”
Born in Tunbridge Wells, Baldwin has made 36 appearances for Worcester, scoring four tries, since his debut in January, 2016. He signed his first professional contract with Saracens in 2010.
“It’s a fresh start and challenge for me and I’m hugely excited about the move to Wales. I saw first-hand the impact Dean had at Worcester, so I can’t wait to see what he can achieve with the Dragons,” said Baldwin.
“I’ve spoken to a few friends who’ve played in the Guinness PRO14 and they’ve all told me it’s a great league to be a part of. It’s a different style to the English Premiership and a new set of teams and opponents to face.
“I’m now just looking forward to getting back playing, enjoying my rugby and seeing what impact I can have both on and off the pitch.”
Meanwhile, the Dragons have also added to their backroom team with Simon Cross joining the region.
Former Edinburgh captain Cross will join forces with Director of Dragons Rugby Ryan for a second spell after they previously worked together at Worcester Warriors. Cross was appointed defence coach at Sixways in 2013.
The 38-year-old has carved out a reputation as one of the most talented young Scottish coaches since his retirement from playing in 2010.
Ryan said: “We’ve identified we needed to add more support around the coaching group across pre-season.
“Having worked with Simon before I know the coaching expertise he brings to a team around defence.
“From the end of July, the Academy players will train with the seniors as we step up preparations ahead of the Celtic Cup fixtures which begin towards the end of August.”
A flanker during his playing days, Cross was part of the Scotland Under-20 set-up in 2012/13 as defence coach and involved with Glasgow Warriors during Scotland’s autumn and Six Nations internationals in 2012, before joining Worcester for five seasons.
Cross – who also played for Wasps and Waterloo – previously worked as head coach at Edinburgh Accies guiding them to the top-flight of Scottish club rugby and earning a place in the British & Irish Cup, and whilst at Worcester he was also Birmingham Moseley head coach until 2018.
Cross is currently Head of Rugby at Royal Grammar School Worcester.