  Using 6.32 fb$^{-1}$ of $e^+e^-$ collision data collected by the BESIII
detector at the center-of-mass energies between 4.178 and 4.226 GeV,~an
amplitude analysis of the $D^{+}_{s}\rightarrow K^{0}_{S}K^{-}\pi^{+}\pi^{+}$
decays is performed for the first time to determine the intermediate-resonant
contributions. The dominant component is the $D_s^+ \to
K^*(892)^+\overline{K}^*(892)^0$ decay with a fraction of $(40.6\pm2.9_{\rm
stat}\pm4.9_{\rm sys})$%. Our results of the amplitude analysis are used to
obtain a more precise measurement of the branching fraction of the
$D^{+}_{s}\rightarrow K^{0}_{S}K^{-}\pi^{+}\pi^{+}$ decay, which is determined
to be $(1.46\pm0.05_{\rm stat}\pm0.05_{\rm sys}$)%.
