The present invention relates to one kind of electrostrictive layered nanometer composite polymer material, which is prepared with electrostrictive polymer, layered nanometer inorganic material, organic intercalative agent, cross-linking agent, catalyst and protonating agent, and through curing at 40-120 deg.c to form 10-1000 micron thick film and the subsequent drawing orientation. When 10-100 V/micron electric field is applied in the direction perpendicular to the film plane, one strain in 1-100 % may generate in the direction perpendicular to the electric field direction and the drawing direction, with the deformation being eliminated fast after the electric field is eliminated. The electrostrictive composite polymer material may be applied in electric driver, pump and sensor related to artificial muscle, and compared with available technology, the present invention has the advantages of simple preparation and lower driving voltage.