Establishment and early years Ratchaburi Football Club was founded in 2004 and then joined 2006 Thailand Division 2 League. Ratchaburi able to win the Thailand Division 2 League title, get the right to compete in the
2007 Thailand League Division 1. The 2007 League Division 1 season has a total of 24 teams participating in the competition, divided into 2 groups, 12 teams each and at the end of the competition, the top five of each group will be relegated to the competition. Thai League Division 2, the club did not perform very well, finished the season with the last place in the group A table. In 2008, Ratchaburi finished in seventh place out of the 11 participating teams, causing the team to relegate, but due to the
Football Association of Thailand reshaping the competition in the season 2009 makes Ratchaburi continue to compete in the Thai League Division 2
2009 Regional League Division 2 is the first season to compete in a 5-region zone system, Ratchaburi Football Club is organized in the
Central and Eastern region. The club finished the season with 9th place out of 12 participating teams. is considered one of the most successful coach in Ratchaburi history spending most of his managerial career at the club and successfully guiding the club from the third tier all the way to the first division. Whilst in Division 1, Ratchaburi made it to the
2012 Thai League Cup final where they lost 4–1 to
Buriram United. The final was most remembered for the farcical circumstances that Ratchaburi faced as they didn't have any substitutes on the bench due to having several ineligible loanees from opponents Buriram United. Ratchaburi never stood a chance as Buriram won the final at a canter.
Promotion to the top flight In the following season, Ratchaburi flew through the
2012 Thai Division 1 League winning the title on their way to the top flight league. In the first season of the Ratchaburi in top-tier league is considered unsuccessful, ranked 15th out of the total of 18 teams, but due to the problem of scrambling for the rights of the team between
Sisaket and Esan United escalate, The Thai League company decided to increase the top 20 teams in TPL, resulting in the
Thai Premier League competition in 2013 season, there was only one relegation team,
Pattaya United (17th place). In 2014 season, Ratchaburi reacted by appointing former
Girona manager
Ricardo Rodríguez as their new manager for the new
2014 Thai Premier League season. The Dragons finished comfortably in 4th place.
Move to Mitr Phol Stadium and recent years , first
technical director of club After participating in the top league for 3 years, Ratchaburi Mitr Phol has a project to build its own football stadium. The stadium started construction in 2015 and opened for the first time in mid-2016. In 2016 the club moved to new ground,
Mitr Phol Stadium and the club appointed
Robert Procureur as the club first technical director. In 2016, Following the death of King
Bhumibol Adulyadej, the
Football Association of Thailand cancelled the remaining league and cup season on 14 October 2016, with three rounds remaining. Ratchaburi then was announced as the
2016 Thai FA Cup champions where the title was shared among
Chainat Hornbill,
Chonburi and
Sukhothai who was then in the semi-finals. Ratchaburi then finished the league in 6th place. , captain of the team from 2019 to 2021 In the
2017 season, Ratchaburi continued to progress under
Pacheta's stewardship, and with a team containing half blood players
Philip Roller and
Kevin Deeromram reached league finish as 6th place as well as reaching the semi-final of the
League Cup losing 0–1 to Chiangrai United at
Supachalasai Stadium. In the
2018 season, a dismal run of form saw the team slip to the bottom of the league table. Ratchaburi finished the season in 12th place with 43 points, they were one point adrift from safety. In the 2019 season, after beating
Buriram United in the semi-final, Ratchaburi reached the
2019 Thai FA Cup final for the first time in their history. In the final, played at the
Leo Stadium, Ratchaburi lost to
Port 1–0, with a goal by
Sergio Suárez scored in second half. Ratchaburi made it becoming the runner-up of the competition.
AFC Champions League debut In 2021, Ratchaburi qualified to
2021 AFC Champions League for the first time in club history after finishing the position in top four in the
2020–21 season. Ratchaburi was then placed in group G alongside South Korean
Pohang Steelers, Japanese club
Nagoya Grampus and Malaysian club
Johor Darul Ta'zim. On 4 July 2021, the club then registered their first ever points in the tournament after a goalless draw against Pohang Steelers. In 2022, Ratchaburi ended their 10-years sponsorship with Mitr Phol where the club name was shorten back to
Ratchaburi. The club stadium has also renamed to Dragon Solar Park after the solar panel manufacturing company Dragon Solar.
AFC Champions League Two knockout stage Ratchaburi ended the
2024–25 Thai League 1 in fourth place which then sees the team qualified to the
2025–26 AFC Champions League Two. In the 2025–26 AFC Champions League Two, Ratchaburi finished the group stage as runners-up thus qualifying to the round of 16 facing off against Indonesian club
Persib Bandung. Ratchaburi won 3–0 in the first leg but fall to a 1–0 defeat in the second leg in Bandung where it cause an uproar among the Persib Bandung fans. Ratchaburi won 3–1 on aggregate thus qualifying to the quarter-finals. ==Academy development==