Tungsten　has　poor　processing　performance　and　its　brittleness　often　leads　to　defects.　The　effect　of　grain　size　on　rotary　swaging　of　the　sintered　rod　was　investigated　to　improve　the　quality　of　the　destination　part.　Three　different　grain　sizes　of　sintered　rods　were　selected　to　research　the　physical　and　mechanical　properties,　microstructure,　and　texture.　The　texture　evolution　of　the　sintered　rods　and　the　effect　of　qualification　rate　of　destination　parts　were　studied.　It　was　found　that　the　{111}　uvw　uvw　110　110　uvw　texture　formed　in　the　sintered　process　was　not　beneficial　to　ductility.　The　increment　of　grain　size　has　advantages　for　the　processing　technology　within　a　certain　range.　(c)　2021　The　Authors.　Published　by　Elsevier　B.V.　This　is　an　open　access　article　under　the　CC　BY-NC-ND　license　(http://creativecommons.org/licenses/by-nc-nd/4.0/).