On the Nature of X(4260)

We study the property of $X(4260)$ resonance by re-analyzing all experimental data available, especially the $e^+e^- \rightarrow J/\psi,\pi^+\pi^-,,,,\omega\chi_{c0}$ cross section data. The final state interactions of the $\pi \pi$, $K\bar{K}$ couple channel system are also taken into account. A sizable coupling between the $X(4260)$ and $\omega {\chi }_{c0}$ is found. The inclusion of the $\omega {\chi }_{c0}$ data indicates a small value of ${\mathrm{\Gamma }}_{e^{+}{e}^{-}}=23.30\pm 3.55$eV.