Abstract. We present optical photometry and spectroscopy of the normal type IIp supernova SN 2008in which was discovered in the galaxy M61 (NGC 4303) about 10 days after the explosion. We calculated the distance to M61 of 15.2(±3) Mpc using Standard Candle Method (SCM) and Expanding Photosphere Method (EPM). The ejected nickel mass during the explosion is estimated to be 0.025(± 0.01) M_⊙;. The plateau luminosity, its duration (about 90 days) and the expansion velocity of the supernova ejecta at the middle of the plateau indicate an explosion energy of 8.6(± 2.5)×10⁵⁰ergs, and the ejected envelope mass of 16(± 4) M_⊙ which gives the main sequence mass of 20 M_⊙.