A transfer method for carbon nanotube array is provided. A carbon nanotube array is located on a first substrate. A pressure is applied to the carbon nanotube array to form a carbon nanotube paper. A second substrate with a bonding layer is placed on the carbon nanotube paper, and the bonding layer is located between the second substrate and the carbon nanotube array. The second substrate is peeled off, and the carbon nanotubes of the carbon nanotube paper vertically aligned and form the carbon nanotube array under forces of the first substrate and the second substrate. The carbon nanotubes of the carbon nanotube array are substantially perpendicular to the surface of the second substrate.