  In this work, we tentatively assign the $Y(4500)$ as the
$[uc]_{\tilde{A}}[\overline{uc}]_{V}+[uc]_{V}[\overline{uc}]_{\tilde{A}}+[dc]_{\tilde{A}}[\overline{dc}]_{V}
+[dc]_{V}[\overline{dc}]_{\tilde{A}}$ tetraquark state with the quantum numbers
$J^{PC}=1^{--}$, and study the three-body strong decay $Y(4500)\to
D^{*-}D^{*0}\pi^+$ with the light-cone QCD sum rules. It is the first time to
use the light-cone QCD sum rules to calculate the four-hadron coupling
constants, the approach can be extended to study other three-body strong decays
directly and diagnose the $X$, $Y$ and $Z$ states.
