Abstarct: Considering spin-1 particles done by Proca equation , nature forces can be transfered by their mediators , electromagnetic , strong nuclear , weak nuclear forces mediators are photons, gluons, w z mesons which are all spin-1. They show the importance of Proca equation. In this proposal, at first, we are dealing with spin-1 particles and then considering Proca equation for the spin-1 particles which are either massless or massfull . We are discussing that in such a state, relativistic wave function has ten components, and five components for spin-0 particles. For spin-0 particles DKP equation is equivalent to KG and for spin-1 particles is equivalent to Proca equation. Also we have considered scattering (dispersion) effect of spin-1 particles in the Presence of Hulthen and Woods-Saxon and Smooth potential in different quantum numbers, which is solved by approximation of the center- oriented term. Then with considering the boundary conditions for spin-1 particles in a physical smooth potential according to the incident particle flux, transitive and reflective coefficients will be obtained.