  The first four-color light curves of V868 Mon in the $B$ $V$ $R_c$ and $I_c$
bands are presented and analyzed by using the Wilson-Devinney method of the
2013 version. It is discovered that V868 Mon is an A-subtype contact binary
(f=$58.9\,\%$) with a large temperature difference of 916$K$ between the two
components. Using the eight new times of light minimum determined by the
authors together with those collected from literatures, the authors found that
the general trend of the observed-calculate ($O$-$C$) curve shows a upward
parabolic variation that corresponds to a long-term increase in the orbital
period at a rate of $dP/dt=9.38\times{10^{-7}}day\cdot year^{-1}$. The
continuous increase may be caused by a mass transfer from the less massive
component to the more massive one.
