We describe the latest PHENIX results on double longitudinal spin asymmetry (ALL) and single transverse spin asymmetry (AN) of open charm production, as well as the results of spin transfer to hyperons. With transversely and longitudinally polarized proton beams at the RHIC, we can measure both ALL and AN. The PHENIX experiment collected 10 pb−1 (beam polarization ∼60%) and 0.35 pb−1 (beam polarization ∼35%) data from year 2006 and 2003 runs, respectively. In this paper, the preliminary results of ALL and AN in open charm production at forward rapidities from year 2006 runs are shown. In addition, the method to extract the spin transfer to from PHENIX data, and the distribution of spin transfer with pT from 2003 run data is also presented in this paper.