It has been shown by the present author that the critical conditions for the wrinkling in the deep drawing operated with flat dies depend mainly on the holding-down force and the rigidity, i.e., its changing rates due to deformations as regards the blank holding systems. The present paper deals with the results of the systematical experimental investigation with reference to the wrinkling behavior of the various types of the blank holding systems, including the new systems proposed by the author. Further, the result of the present, experiment has clarified the mechanism of the wrinkling and the characteristic of blank holders of these types.