Plant genetic resources for food and agriculture (PGRFA) are the motivations to modify the species of crops and also are the basics of sustainable agricultural development. Crop Wild Relatives (CWR) refer to the original species of cultivation crop or the wild species of the relatives with close genes, which are disease-resistant, insect-resistant, resistance to the environmental stress, and also the sources of important economic traits. CWR also increases the productions and quality and decreases poverty.