The invention refers to the parallel calculation method for polarization coding (PCPE) for channel coding technique in 5th next generation mobile communication systems which includes to split N-bits input sequence into X parallel streams, each stream has Y bits; to multiply Y bits at each stream by the columns of the Kronecker matrix GY, the results are displayed in rows according to the principle of bit elimination; and to multiply the matrix obtained with the columns of the Kronecker matrix GX according to the sample repeat and scalar multiplication. In addition, the invention also refers to the polarization coding system according to the Parallel Computation for Polarization Encoding (PCPE) for the channel coding technique in the 5th next generation mobile communication system.