Study of Scalar Mesons at BES-II

Recent results from BES-II experiment on hadron spectroscopy using $\jpsi$ and $\psi^\prime$ data samples collected in $e^+e^-$ annihilation are presented, including study of the scalar particles in $\jpsi$ radiative and hadronic decays, the observation of X(1810) in $J/\psi \to \gamma \phi \omega$, as well as pair productions of scalars in $\chi_{c0}$ hadronic decays.