The first charge-coupled device photometric light curves in B , V , R { { } _ { c } } , and I { { } _ { c } } bands of the short-period contact binary star OQ Cam are presented .
Through analyzing the light curves with the Wilson-Devinney code , it is found that OQ Cam is a W-type shallow contact binary star with a contact degree of f =20.2 % .
Based on the O-C analyzing , the orbit period displays a long term increasing with a rate of dP / dt = 4.40 \times 10 { { } ^ { -7 } } day \cdot year { { } ^ { -1 } } .
The increasing in orbit period can be interpreted by mass transfer from the less massive component to the more massive one .
As the orbit period increasing , OQ Cam would evolve from the present shallow contact configuration to a none contact stage .
So it may be a potential candidate to confirm the thermal relaxation oscillation theory .