  Due to the dense environment, neutron stars (NSs) can serve as an ideal
laboratory for studying the interactions between dark matter (DM) and ordinary
matter. In the process of DM capture, deep inelastic scattering may dominate
over elastic scattering, especially for the DM with a large momentum transfer.
In this work, we calculate DM-nucleon deep inelastic scattering via a vector
mediator and estimate its contribution to the capture rate. Using the surface
temperature of the NSs, we derive the exclusion limits for the DM-nucleon
scattering cross section in the mass range, $1~{\rm GeV}<m_{\chi}< 10^{5}~{\rm
GeV}$. We find the bounds for DM with the mass $\gtrsim$ 1 GeV can be changed
several times after including the deep inelastic scattering contribution.
