Founded in 2000 as Tricolorul Alparea, the club played for twelve years at amateur level, in Liga IV – Bihor County, until their promotion to Liga III in 2012. Led by Mircea Madar, Tricolorul won the county league and the promotion play-off match against Someșul Cărășeu, the Liga IV – Satu Mare County winner, 1–0 at the Municipal Stadium in Zalău.[1][2][3]
After promotion, they changed their name from Tricolorul Alparea to CS Oșorhei.[4]
In the three seasons spent on the third level of the Romanian football they finished on honorable places: 3rd, 4th and 5th.
The major objective of the club is to promote young players.
In 2015 they have entered into a partnership with Liga II club Bihor Oradea.[5]
^"Tricolorul Alparea a promovat!" [Tricolorul Alparea promoted!]. bihon.ro. 21 June 2012. Archived from the original on 20 July 2018. Retrieved 11 November 2018.(in Romanian)
^"Colaborare cu CS Oșorhei" [Collaboration with CS Oșorhei]. fcbihor.ro. 19 January 2015. Archived from the original on 4 March 2016. Retrieved 11 November 2018.(in Romanian)