The present invention provides a wiper blade, by balancing the opposite characteristics between the ease of operation and the cleaning force, the overall shape of the wiper blade is inclined laterally with elasticity in accordance with the moving direction of the blade mounting means for ease of operation, and the contact portion of the wiper blade for performing the cleaning is capable of maintaining an angle close to a right angle with respect to the cleaning surface, so that the wiper blade is also excellent in cleaning force.