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.ngetikin.com/deal-time-Orange-Zinger-Tomato-Container-Cherry-Tomatoes-Lycopersicon-Esculentum-5-Seeds-mega-super/