The aim of this study was to investigate the main influencing factors and behaviors of Bisphenol A (BPA) migration from Polycarbonate (PC) drinking bucket under the repeated use condition, thus to provide reference for correct use of PC drinking bucket in the daily life. Using high performance liquid chromatography (HPLC), the influence of reused terms, temperature and interval time of changing water on BPA migration from the five collected drinking buckets was studied. In the meantime, the difference between the new PC bucket and old PC bucket used for one year was analyzed. The migration of BPA from PC buckets was mainly affected by the use terms and temperature. The migration amount increased with the reused terms and temperature. The interval time of changing water had little influence on the BPA migration. Also, the amount of BPA migration from the reused old PC bucket was apparently higher than that from the new PC bucket. During the daily use of PC buckets, they should be used at normal temperature for short terms, in avoid of high temperature and long terms. After being used for some terms, PC buckets should be discarded and recycled.