  The process of nonlinear electron emission from a metal surface under the
action of femtosecond laser pulse with moderate intensity
$\sim10^{11}$~W/cm$^2$ is considered. One-dimensional model is formulated,
taking into account the advantage of the $p$-polarized light in the nonlinear
emission. The time dependent Schrodinger equation with fixed equilibrium
boundary conditions is solved in the half-space using the Laplace transform
technique. The energy spectrum of emitted electrons is obtained, and its
dependence on the laser pulse parameters in compare with experimental data is
discussed.
