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In this article, we assume that the narrow structure X(4350) is a scalar$\bar{c}c-{D}_s^\ast {\bar {D}}_s^\ast$ mixing state, and study its mass usingthe QCD sum rules. The numerical result $M_X=(4.37\pm0.15)\,\rm{GeV}$ is ingood agreement with the experimental data, the X(4350) may be a scalar$\bar{c}c-{D}_s^\ast {\bar {D}}_s^\ast$ mixing state. Other possibility, suchas a scalar (tensor) $cs\bar{c}\bar{s}$ tetraquark state is not excluded.

Analysis of the X(4350) as a scalar $\bar{c}c$ and ${D}_s^\ast {\bar {D}}_s^\ast$ mixing state with QCD sum rules