The　first-order　neutron　transport　equation　is　solved　by　the　least-squares　finite　element　method　based　on　the　discrete　ordinates　discretization.　The　angular　dependent　rebalance　(ADR)　acceleration　arithmetic　and　its　extrapolate　method　are　given.　The　numerical　results　of　some　benchmark　problems　demonstrate　that　the　arithmetic　can　shorten　the　CPU　time　to　34%-50%　and　it　is　effective　even　for　the　strong　scattering　problem.