  For $\delta$ Scuti star CoRoT 102749568, 52 independent frequencies were
obtained by Papar$\acute{o}$ et al. 2013. We find that there are 4 multiplets
and 8 doublets with nearly equal split caused by rotation. Differential
rotation is suggested instead of rigid body rotation to explain the equal split
phenomenon. Grids of models are computed with MESA to fit observational
frequencies of CoRoT 102749568. After rejecting modes of $m\neq0$ in multiplets
and doublets, we identify 31 modes of $m = 0$ and 3 modes of $m\neq0$,
including 4 modes of $l = 0$, 9 modes of $l=1$, 11 modes of $l=2$, and 10 modes
of $l=3$. The mean error is 0.447$\mu$Hz for the best-fitting model, and the
physical parameters of the corresponding model are as followings: $M=1.95$ $\rm
M_{\odot}$, $Z=0.025$, $T_{\rm eff}=7096$ K, log$g=3.727$, $L=22.77$ $\rm
L_{\odot}$, $Age=1.113$ Gyr.

Solar and Stellar Astrophysics