At present, the air pollution from burning corn stubble and corn cob in north area directly affect the health of the people, causing allergies, asthma, cancer, tuberculosis, and the nasal cavity. Such effects is the source of the research of corn cob purple fill 0 - 40% (w/w) combined with polylactic acid in the production process of bioplastics. Then evaluate the properties of various aspects of the bioplastics suitable for used in the material of packaging. The results showed that adding corn cob purple tend to Glass transition temperature and melting temperature increased. Adding corn cob purple (20 (w / W). Can produce biopackaging that properties is 1.5x10-4 m / m2.mmHg.day, 18.02 ± 0.33 MPa, 29.42 ± 0.05 ͦ C, 145.84 ± 0.30 ͦ C and biodegradable percent 34.97 ± 1.1 at 10 week. From filling fiber purple corn cob can increase the tensile strength, to reduce the water vapor transmission rate and slow down the degradation of plastic. Degradation of bioplastic over time 10 week biodegradable 70%.