An electrophotographic fixing member comprising a substrate, a cured silicone rubber layer formed on the substrate, a fluorine resin layer adhered on the cured silicone rubber layer with an addition curing type silicone rubber adhesive, wherein: the cured silicone rubber layer has a thickness in a range of 100 μm or more and 500 μm or less, an unsaturated aliphatic group is present in the cured silicone rubber layer, the cured silicone rubber layer being a cured product of an addition curing silicone rubber containing: an organopolysiloxane having an unsaturated aliphatic group, and an organopolysiloxane having an active hydrogen atom bound to silicon, wherein a ratio of the number of the active hydrogen atoms to the unsaturated aliphatic groups is 0.3 or more and 0.8 or less, and a micro hardness H μ0 and a micro hardness H μ1 satisfy the following relationship, allowing indirect quantitative determination of the amount of the unsaturated aliphatic group being present: 2.5 ≤ H μ 1 / H μ 0 ≤ 5.0 where H μ0 denotes a micro hardness of a laminate of thin specimens having a thickness of 2 mm, each of the thin specimens being cut out from the cured silicone rubber layer of the fixing member, and H μ1 denotes a micro hardness of a laminate of thin specimens having a thickness of 2 mm, the laminate of thin specimens being obtained by soaking each of the thin specimens cut out from the cured silicone rubber layer in a methylhydrogen silicone oil at the temperature of 30°C for 24 hours, heating each of the soaked thin specimens at 200°C for four hours, cooling out each of the thin specimens, and then laminating each of the thin specimens. the cured silicone rubber layer has a thickness in a range of 100 μm or more and 500 μm or less, an unsaturated aliphatic group is present in the cured silicone rubber layer, the cured silicone rubber layer being a cured product of an addition curing silicone rubber containing: an organopolysiloxane having an unsaturated aliphatic group, and an organopolysiloxane having an active hydrogen atom bound to silicon, wherein a ratio of the number of the active hydrogen atoms to the unsaturated aliphatic groups is 0.3 or more and 0.8 or less, and an organopolysiloxane having an unsaturated aliphatic group, and an organopolysiloxane having an active hydrogen atom bound to silicon, wherein a ratio of the number of the active hydrogen atoms to the unsaturated aliphatic groups is 0.3 or more and 0.8 or less, and a micro hardness H μ0 and a micro hardness H μ1 satisfy the following relationship, allowing indirect quantitative determination of the amount of the unsaturated aliphatic group being present: 2.5 ≤ H μ 1 / H μ 0 ≤ 5.0 where H μ0 denotes a micro hardness of a laminate of thin specimens having a thickness of 2 mm, each of the thin specimens being cut out from the cured silicone rubber layer of the fixing member, and H μ1 denotes a micro hardness of a laminate of thin specimens having a thickness of 2 mm, the laminate of thin specimens being obtained by soaking each of the thin specimens cut out from the cured silicone rubber layer in a methylhydrogen silicone oil at the temperature of 30°C for 24 hours, heating each of the soaked thin specimens at 200°C for four hours, cooling out each of the thin specimens, and then laminating each of the thin specimens. where H μ0 denotes a micro hardness of a laminate of thin specimens having a thickness of 2 mm, each of the thin specimens being cut out from the cured silicone rubber layer of the fixing member, and H μ1 denotes a micro hardness of a laminate of thin specimens having a thickness of 2 mm, the laminate of thin specimens being obtained by soaking each of the thin specimens cut out from the cured silicone rubber layer in a methylhydrogen silicone oil at the temperature of 30°C for 24 hours, heating each of the soaked thin specimens at 200°C for four hours, cooling out each of the thin specimens, and then laminating each of the thin specimens.