A die cushion device attachable to a press machine that automatically and repeatedly forms blank materials one by one, the die cushion device comprising a double blank detecting device , characterized in that , the die cushion device further comprises: a die cushion position detector configured to detect a position of a cushion pad and output a die cushion position signal indicating the position of the cushion pad ; and a die cushion load detector configured to detect a die cushion load generated in the cushion pad and output a die cushion load signal indicating the die cushion load, the double blank detecting device comprising: a position signal acquiring unit configured to acquire the die cushion position signal from the die cushion position detector ; a load signal acquiring unit configured to acquire the die cushion load signal from the die cushion load detector ; and a double blank detecting unit configured to detect, as a double blank, a state where a plurality of the blank materials are overlapped, based on the die cushion position signal acquired by the position signal acquiring unit , and the die cushion load signal acquired by the load signal acquiring unit , wherein the double blank detecting unit holds the die cushion position signal at a time point when the die cushion load signal rises to a predetermined value, compares a holding value of the held die cushion position signal with an abnormality identification value, and detects the double blank. a die cushion position detector configured to detect a position of a cushion pad and output a die cushion position signal indicating the position of the cushion pad ; and a die cushion load detector configured to detect a die cushion load generated in the cushion pad and output a die cushion load signal indicating the die cushion load, the double blank detecting device comprising: a position signal acquiring unit configured to acquire the die cushion position signal from the die cushion position detector ; a load signal acquiring unit configured to acquire the die cushion load signal from the die cushion load detector ; and a double blank detecting unit configured to detect, as a double blank, a state where a plurality of the blank materials are overlapped, based on the die cushion position signal acquired by the position signal acquiring unit , and the die cushion load signal acquired by the load signal acquiring unit , a position signal acquiring unit configured to acquire the die cushion position signal from the die cushion position detector ; a load signal acquiring unit configured to acquire the die cushion load signal from the die cushion load detector ; and a double blank detecting unit configured to detect, as a double blank, a state where a plurality of the blank materials are overlapped, based on the die cushion position signal acquired by the position signal acquiring unit , and the die cushion load signal acquired by the load signal acquiring unit , wherein the double blank detecting unit holds the die cushion position signal at a time point when the die cushion load signal rises to a predetermined value, compares a holding value of the held die cushion position signal with an abnormality identification value, and detects the double blank. <EOS>