Morley played and won its first match on the 9 November 1878, against Dewsbury Birkdale. Morley was a member of the Northern Union, however, when the Northern Union clubs broke away from the RFU to form what is now rugby league, the Morley representatives missed the train to Huddersfield as they were still in the pub. As a result, Morley remained with the RFU and rugby union. Ben Gronow was the coach for Morley R.F.C. in the 1930s, however when a history of the club was produced some years later, due to his previous rugby league associations, he was identified as 'unknown' in a team photograph. When the club won the Yorkshire Cupfor the first time in 1932 in its fourth final, Morley borough council granted permission for the municipal coat of arms to be worn on the club's jerseys. The figures and devices on the coat of arms were symbolic of the principal industries of the Borough - the manufacture of woollen cloth, coal mining and quarrying. When Morley celebrated its centenary in 1978, a rugby ball bearing the club's foundation date replaced the maxim Industria Omnia Vincit beneath the shield. Morley have won the Yorkshire Cup 11 times, and 3 times in a row in the 1970s. They also hold claim to being the longest-enduring holders of the cup, having won it in 1938 and 1939. The cup was not contested again until 1947 due to the Second World War. During the war years, the trophy was in held in safe keeping, in a box under the club secretary's bed. In the early 1990s the club climbed to the national second division, the division immediately below today's Premiership. However, by 1996 they had dropped down to the third tier, then called National Division three which today would be National League 1. 2005 was a historic year for Morley as they defeated Westoe RFC to win The Powergen Intermediate Cup at Twickenham. The victory capped a Yorkshire hat trick as on the same day Sheffield Tigers won the Powergen Junior Vase and Leeds Tykes defeated Bath in the final of the Powergen Cup. In 2005–06 the club was promoted as champions from the Powergen League North 1 and in 2006 Morley were again at Twickenham reaching the cup final for the second successive year. However, they failed in attempting to become the first team to retain the cup, losing 11-6 to Stockport in a below par performance. However, the season was still a great success as Morley finished as league champions and clinched promotion. In the 2006–07 season the team finished 6th in the league. However, in the 2007–08 season Morley were relegated from National Division Three North to North 1. In the 2008–09 season despite a slow start Morley finished strongly and ended the season in 3rd position in the league, narrowly missing out on promotion. In the 2009–10 season Morley had an excellent season, losing just 3 league games. As a result, they finished top of the league and gained promotion into National Division 2 North for 2010–11 season. Recent seasons have been less kind to the club and they were soon back in National 3 North and have been relegated again and for the 2012–13 season found themselves in the sixth tier, North 1 East. Since then they have been a "yo-yo" team, going between levels five and six. Each relegation brought instant promotion but Morley has been unable to consolidate their position at level five and are once again at level 6, North 1 East.
George Herbert Marsden, won caps for England while at Morley R.F.C. in 1900 against Wales, Ireland, and Scotland, and won a cap for England while at for Bradford in 1905 against Other Nationalities.
John Shooter, won caps for England while at Morley R.F.C. in 1899 against Ireland, and Scotland, and in 1900 against Ireland, and Scotland.
Jon Wray played for Morley before moving to play professional rugby league for Castelford, appearing in the 1992 Challenge Cup final.
Craig Emmerson was the first player to ever have a transfer fee paid for them when he moved from Morley to Premiership club Gloucester Rugby in 1995 just as professionalism had been passed by World Rugby.
