Aiming at the problem of service discovery in unstructured P2P network. a trustworthy service discovery me-thod based on a modified ant colony algorithm was prop sed. Some novel policies were introduced to control the beha-vior of the ant colony. such as the dynamic ant colony policy. https://www.jmannino.com/great-pick-Sophie-Allport-Zebra-Made-to-Measure-Blackout-Roller-Blind-Soft-Grey-Blue-top-super/