  Matter state inside neutron stars is an exciting problem in astrophysics,
nuclear physics and particle physics. The equation of state (EOS) of neutron
stars plays a crucial role in the present multimessenger astronomy, especially
after the event of GW170817. We propose a new neutron star EOS "QMF18" from the
quark level, which describes well robust observational constraints from
free-space nucleon, nuclear matter saturation, heavy pulsar measurements and
the tidal deformability of the very recent GW170817 observation. For this
purpose, we employ the quark-mean-field (QMF) model, allowing one to tune the
density dependence of the symmetry energy and study effectively its
correlations with the Love number and the tidal deformability. We provide
tabulated data for the new EOS and compare it with other recent EOSs from
various many-body frameworks.
