The　effects　of　twin　types　on　grain　nucleation　and　texture　evolution　during　static　recrystallization　were　investigated.　Three　kinds　of　cylindrical　samples　were　cut　from　an　AZ31　magnesium　alloy　plate　with　their　compression　directions　aligned　0　degrees,　45　degrees,　and　90　degrees　to　the　normal　direction　(ND),　and　they　were　referred　as　OND,　45ND　and　90ND　samples,　respectively.　The　compression　tests　were　conducted　at　room　temperature　with　a　strain　of　16%,　followed　by　an　annealing　at　250　degrees　C　for　3　min,　20　min　and　60　min　respectively.　The　effects　of　twin　types　in　different　samples　on　grain　nucleation　and　texture　evolution　during　static　recrystallization　were　investigated　with　electron　backscattered　diffraction　(EBSD)　technology.　The　{10　-　11}　-　{10　-　12}　double　twinning　was　found　to　be　the　dominant　deformation　mechanism　in　OND　and　90ND　samples,　while　{10-12}　tension　twins　and　compression　twins　can　be　observed　in　some　grains　in　45ND　sample.　The　{10-11}　-　{10-12}　double　twins　are　the　preferred　sites　for　new　grain　nucleation,　and　the　{10-12}　tensile　twins　are　unfavorable　for　nucleation　of　static　recrystallization.　It　is　noteworthy　that　a　tiny　fraction　of　{10-11}　and　{10　-　13}　compression　twins　can　be　nucleation　sites　for　new　grains.　The　sequence　of　recrystallized　speed　in　the　samples　is:　90ND　sample　＞　OND　sample　＞　45ND　sample.　The　grain　size　can　be　refined　effectively　and　the　deformation　texture　becomes　weaken　during　the　static　recrystallization.　The　misorientation　angle　between　recrystallized　grains　and　matrix　is　fluctuated　from　20　degrees　to　60　degrees,　and　this　phenomenon　is　suggested　to　be　related　to　the　{10-11}　-　{10-12}　double　twins,　{10-11}　and　{10-13}　compression　twins.