We describe the development of a novel palladium catalyst supported on a durable hydrophilic surface fabricated by the plasma-assisted method. Pd nano particles were immobilized on the polymer film possessing a durable hydrophilic surface (LDPE-Pd film). Two kinds of LDPE-Pd film possessing different Pd density were prepared to estimate the chemoselective hydrogenation. Stilbene and 4-nitroaniline were readily hydrogenated with LDPE-Pd film, indicating that the temperature and density of Pd on film might be very important for chemoselectivity.