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The symmetric spin-orbit/nteractions of one-gluon-exchange and confinement are included in the nucleon-nucleon phase shift calculation in the framework of quark delocalization colour screening model.The spin-orbit interaction has little influence on D wave phase shift.For the triplet P waves,3 pT is in good agreement with the experimental data and 3 pLS is attractive but not strong enough,whereas 3Pc is too strongly repulsive.Our results indicate that the symmetric spin-orbit interaction of one-gluon-exchange and confinement potential cannot give a good description of the triplet P wave phase shifts.More sophisticated considerations,the delocalization depending on the relative orientation between two duster,might be needed to improve the description of P-wave NN interaction.