  Using data corresponding to an integrated luminosity of
$651~\mathrm{pb}^{-1}$ accumulated at 22 center-of-mass energies from 2.00 to
3.08 GeV by the BESIII experiment, the process
$e^{+}e^{-}\to\phi\pi^{+}\pi^{-}$ is studied. The cross sections for
$e^{+}e^{-}\to\phi\pi^{+}\pi^{-}$ are consistent with previous results, but
with improved precision. To measure the mass and width of the structure
observed in the cross section line shape, a combine fit is performed after
enhancing the contribution from $\phi f_{0}(980)$. The fit reveals a structure
with the mass of $M=2178\pm20\pm5~{\rm MeV}/c^2$ and the width of
$\varGamma=140\pm36\pm16~{\rm MeV}$, where the first uncertainties are
statistical and the second ones are systematic.
