In this research, we planted mung beans onto the polyester fiber with different contents of the far infrared, and put them into a bud box. Discuss about the fiber with different contents of far infrared could affect the length of the bean sprouts, diameter, and weight. Also, we measured the influence of the polyester fiber humidity lost with different contents of the far infrared. More test, measured the loss of emanation between non-used polyester and used polyester. The results show that the bean sprouts growth length of the far infrared polyester fiber is better than without far infrared polyester fiber. The value of the sprouts growth length with the content 0.6% of the far infrared polyester fiber grows 1.75 cm. In the bean sprouts diameter and weight, there is no obvious influence between the far infrared polyester and without far infrared polyester fiber. In the humidity lost, compare with the original polyester, the rate lost of the humidity which is the far infrared content 1.5% could lose 16.1%. In emanation rate, the emanation rate of the far infrared polyester would be lost 0.04~0.05 after planting the mung bean.
