  We present light curve solutions of the W UMa-type eclipsing binary
OGLE-GD-ECL-04451, observed by both the \emph{Optical Gravitational Lensing
Ex-periment} (\emph{OGLE}) program in 2006 and the \emph{Antarctica Survey
Telescope} (\emph{AST3-1}) in 2012 at Dome A. We analyzed this binary system
with the Wilson-Devinney(W-D) method 2013 version and derived the mass ratio
$q=2.91 \pm 0.07$, the inclination $i=76.86^\circ \pm 0.23^\circ$, and the
light variattion amplitud was $0^m.51$ based on the \emph{OGLE} data. From the
\emph{AST3-1}'s data, we find that the amplitude dropped to $0^m.44$(2012) and
the difference of magnitudes of the two light maxima is $0^m.03$. A hot spot
was then added on the surface of the secondary to demonstrate the amplitude
change and O'Conell effect of the binary system.
