To　study　the　effect　of　pores　on　heat　conduction　behavior　in　concrete,　taking　the　heterogeneity　into　account,　a　meso-scopic　simulation　method　was　developed　in　the　present　study.　In　the　numerical　simulation,　concrete　in　a　completely　dry　state　was　considered　as　a　heterogeneous　material　consisting　of　two　phases,　i.e.,　the　solid　matrix　without　pores　and　the　pores　filled　with　air.　A　random　structure　model　of　dry　concrete　which　is　similar　with　the　random　aggregate　model　was　established　by　assuming　that　the　pores　are　distributed　randomly　in　the　solid　matrix.　The　heat　conduction　equations　were　solved　using　the　finite-element　method,　in　which　the　two　phases　were　meshed　separately　and　the　continuity　in　heat　fluxes　at　interfaces　between　them　was　applied.　Good　agreement　between　the　simulation　results　and　the　available　test　observations　illustrates　the　accuracy　and　reasonability　of　the　present　approach.　On　the　basis　of　the　meso-scale　numerical　method,　a　2D　simulation　of　heat　conduction　were　conducted.　Moreover,　the　influences　of　some　factors,　including　the　shape　(circular,　squared　and　triangular),　aspect　ratio　a　(the　ratio　between　the　major　axis　and　the　minor　axis　of　the　elliptical　pores),　distribution　patterns　of　pores　and　porosity,　were　explored.