Abstract: Electromagnetic ion-cyclotron (EMIC) waves have been studied by kinetic approach. The effect of kappa loss-cone distribution with bi-Maxwell general loss-cone distribution functionon EMIC instability in magneto-plasma is evaluated. The dispersion relation, growth rate the electromagnetic ion-cyclotron waves in low  case (ratio of plasma pressure to magnetic pressure), homogeneous plasma have been obtained.The wave is assumed to propagate parallel to the static magnetic field. The effect kappa loss-cone distribution with bi-Maxwell general loss-cone distribution functionon EMIC waves in magnetosphere plasma is to enhance the damping/growth rate of EMIC wavesin low case. The results are interpreted for the space plasma parameters in magneto-plasma.