The present invention provides a vacuum suction adjustable transfer roller and a film attachment method using the transfer roller. The transfer roller includes: a roller body (20) and a plurality of adjustment devices (40) mounted in the roller body (20). The roller body (20) includes a plurality of air draw-in passages (22) uniformly distributed therein. The air draw-in passages (22) draw in air by means of an air evacuation device. Each of the adjustment devices (40) includes: a valve (42) arranged in each of the air draw-in passages (22), a piezoelectric ceramic piece (44) connected to the valve (42), and a control circuit (46) electrically connected to the piezoelectric ceramic piece (44). The control circuit (46) controls the intensity of an electric field applied to the piezoelectric ceramic piece (44) so that the piezoelectric ceramic piece (44) undergoes deformation under the action of the electric field and the valve (42) is caused by the deformation of the piezoelectric ceramic piece (44) to selectively insert into or withdraw out of the air draw-in passages (22) so as to control flow of air drawn in by the air draw-in passages (22) and thus controlling the magnitude of a vacuum suction force induced by the air draw-in passages (22).