The present invention relates to an automatic press-molded article manufacturing system using a double robot line for a tandem press line and, more specifically, to an automatic press-molded article manufacturing system using a double robot line for a tandem press line, wherein a plurality of destackers and positioners are disposed, each group having two robots is separately disposed and moves alternately, so as to continuously and rapidly transfer and supply the raw material in proportion to a press working time, in a raw material transfer process, a material supply process, an article supply process, and a product withdrawal process.