  With the identification of ($D_{sJ}(2317), D_{sJ}(2460)$) as the ($0^+$,
$1^+$) doublet in the heavy quark effective field theory, we derive the light
cone QCD sum rule for the coupling of eta meson with $D_{sJ}(2317) D_s $ and
$D_{sJ}(2460) D_s^{*} $. Through $\eta-\pi^0$ mixing we calculate their pionic
decay widths, which are consistent with the experimental values (or upper
limits). Combining the radiative decay widths derived by Colangelo, Fazio and
Ozpineci in the same framework, we conclude that the decay patterns of
$D_{sJ}(2317, 2460)$ strongly support their interpretation as ordinary $c \bar
s$ mesons.
