Computer simulations via the grand canonical ensemble Monte Carlo method been been carried out W investigate the equilibrium properties of simple fluids distributed between the external hulk phase and the pore phase. Salvation pressures and pore density profile, are computed for the system of hard-sphere fluids incide a spherical hard-wall nudel pore. For dilute concentrations, the resulting salvation pressures are approximately equal to those in the bulk phase. However, at a moderately dense concentration of n(L4) a weakly oscillatory behavior of the solvation pressure starts to emerge. the apparent maximum and minimum peaks are exhibited in the case of n_β-0.6 due to the local densiy inhmxtgeneities in the pore phase.