The effects of the symmetrical tilt S5 (310) C001D grain boundary (GB) on the evolution of radiationinducedpoint defects in pure d-plutonium (Pu) were studied by Molecular dynamics (MD) simulations. The evolution of radiation-induced point defects was obtained when primary knock-on atom (PKA)was respectively set as 15 Å and 15 Å far from the GB and the number of residual defects was obtainedas the distance from PKA to GB was changed. According to the results, compared with vacancies,interstitial atoms were more easily absorbed by GB. In addition, the formation energy of point defectswas also calculated. The results showed that there was almost no difference for the formation energy ofvacancies in the all matrix. However, the formation energy of interstitial atoms close to the GB was lowerthan that in the other bulk regions