In this study, we used the polypropylene (PE) and the polyester (PET) wasted fibers, then mixing and hot pressing the plate. From the results, we found that the best treatment condition in the weight ratio of PE and PET is 3: 1. The best mechanical properties of the treatment conditions are mixing at 1800C, mixing 10 minutes, hot pressing temp at 180oC, hot pressing 15 minutes, and pressing 60 kgf7cm2.