he research of the listed securities sludge cake oil palm is lost in the process of crude palm oil (CPO) trial is a mixture to replace the raw materials of infections culture oyster mushroom Hungary. The experiment consists of 6 series of experiments. A series of experiments, each of which is mixed with sawdust, and find the proper ratio. For use in the supplement to cultured mushrooms. It was found that the rate that weight and a maximum fiber is the ratio 95: 5 in maximum weight and maximum walking infections 4.07 grams per day. And the 1.73 cm per day, respectively, and the ratio to the manger of flower hat most is the 80: 20 by wide hat flowers that 2.31 cm per day.