Abstarct: At the research, vibration and dynamic contact between tensioned beam under moving mass-spring system have been studied. beam is flexible, homogeneous, isotropic and the length greater the cross-sectional area. Using Euler Bernoulli theory, von Karman strain and Hamilton principle equations of motion linear and nonlinear of the system have been obtained. equations of motion, the two sets of differential equations for the contact coefficients of the variable time, but the time separation are set equations coefficients constant. Using Galerkin method, ordinary differential equations have been obtained and have been solved by the forth order Runge kutta method. The contact force and deflection for tensioned beam in the case of simply supported ends, clamped ends and clamped- simply supported ends is calculated and influence of tension, speed, and spring to mass ratio, in dimensionless form for beam clamped- simply supported ends have been studied. checking for separation of a beam and mass-spring and comparison problem for linear and nonlinear obtained; endorse linear problem with F.E.M.