We have started the B,V,Rc,Ic-band photometric obserrvations of Type Ia SN 2009dc since Apr 17. The spectra of SN 2009dc exhibits the much low line velocity of SiII6355 and the profile was similar to that of SN 2006gz (Hicken et al. 2007, Ap.J. 669, L17), which was reported in CBET 1768 by Harutyunyan et al. We derived preliminarily apparent multicolor magnitudes of SN 2009dc, using the USNO-catalogue magnitudes of a comparison star around SN. The preliminary light curve shows the still rising to maximum light in all band. We will observe this object.