  We present the measurements of the higher moments of the net-proton
multiplicity distributions for Au+Au collisions from the first phase of the
beam energy scan program at RHIC. The measurements are carried out at
midrapidity ($|y|<0.5$) and within the transverse momentum range
$0.4<p_{T}<0.8$ {\gevc} by STAR. The moment products, $\KV$ and $\SD$, which
are related to the ratios of various order baryon number susceptibilities and
sensitive to the correlation length, are applied to search for the QCD critical
point. We report the centrality and energy dependence of the moment products
({\KV} and {\SD}), results are compared with Poisson expectations. The
experiment data are also compared with transport model calculation to
understand the non-critical physics effects.
