We present results of specific heat, magnetization and AC susceptibility measurements of SmPd2Al3 single crystal. The compound exhibits strong uniaxial magnetocrystalline anisotropy with the easy-magnetization direction along the hexagonal c-axis. A transition to a ferromagnetic ordering has been observed at TC = 12.4 K followed by several order-order magnetic phase transitions below 5 K. The magnetization curves measured below 4 K exhibit a series of metamagnetic transitions in fields < 1 T, which indicates that the AF ground state is gradually destroyed with applying a magnetic field along the c-axis.