The invention relates to a biosensor electrode, comprising a three-dimensional porous composite structure, comprising a metal ligament and at least one carbon nanotube structure, a plurality of the metal ligaments form a porous structure, the at least one carbon nanotube structure is disposed in the metal ligament, the at least one carbon nanotube structure comprises at least one layer of a carbon nanotube film, comprising a plurality of carbon nanotubes, the plurality of carbon nanotubes are end-to-end and aligned in the same direction. The present invention further relates to a biosensor.本發明涉及一種生物感測器電極，包括三維多孔複合結構，該三維多孔複合結構包括金屬韌帶和至少一個奈米碳管結構，所述金屬韌帶之間形成多孔結構，該至少一個奈米碳管結構設置於所述金屬韌帶中，所述至少一個奈米碳管結構包括至少一層奈米碳管膜，該至少一層奈米碳管膜包括多個奈米碳管，該多個奈米碳管首尾相連且沿同一方向擇優取向排列。本發明進一步涉及一種生物感測器。
