The invention discloses a colorful silkworm-cocoon artwork ornament, which is prepared through the steps of feeding activated carbon powder into cocoon beads of colorful silkworm cocoons; penetrating through the colorful silkworm cocoons by using rigid plastic ducts, and penetrating through the ducts by using a silk thread; and stringing the colorful silkworm cocoons (into which the activated carbon powder is filled) so as to knit the silkworm cocoons into ornaments with various patterns. The ornament formed by using the scheme above can be used for decorating rooms or achieving other purposes; and the activated carbon adsorbs the volatile and harmful gases such as formaldehyde and the like by using the permeability of the cocoon beads, thereby purifying the environment and expanding the application range of colorful silkworm cocoons.