[en] The variational calculation of the ⁶He ground state energy and corresponding spatial configuration of this nucleus is performed on the basis of fully microscopic with precise treatment of the Pauli exclusion principle algebraic version resonating group method three-cluster approach. It is shown that at suitable choice of the nucleon nucleon interaction potential binary configuration α + ² n is more probable for the ⁶He ground state because of absolute minimum of the total energy corresponds just to this configuration. Existence of less deep the second minimum corresponding to the three cluster configuration α + n + n indicates on the possibility of such configuration admixture into the ⁶He ground state. As for the shell-model configuration, results of the paper show that its contribution into the ⁶He ground state is negligible