  We analyze the static QCD potential in the distance region 0.1 fm < r < 1 fm.
We combine most recent lattice computations and perturbative computations of
the potential, in the framework of operator-product expansion (OPE). We
determine simultaneously the non-perturbative contribution to the potential,
delta E_US(r), and the relation between the lattice scale (Sommer scale) and
Lambda_MSbar in the quenched approximation. We find that (1) large part of the
short-distance linear potential belongs to the perturbative Wilson coefficient,
(2) delta E_US(r) =0 is disfavored, and (3) r_0 Lambda_MSbar^(3-loop)=0.574 +-
0.042 . It provides a new method for precise determination of r_0 Lambda_MSbar.
