This experiment was carried out to investigate the effect of kaolin supplementation from 1% to 6% on the nutrient utilization of egg type chickens of Babcock, The results obtained were as follows: 1. Dry matter utilization of chicken fed the different levels of kaolin was slightly improved as the levels of kaolin supplementation were hither, However, no statistical differences were found out on the dry matter utilization between treatments, 2. Crude protein utilization and nitrogen retention of chicken fed tire different levers of kaolin were significantly (P$lt;0.01) improved as the levels of kaolin supplementation were generally higher. Treatments supplemented with 5%, and 6% of kaolin had a higher crude protein utilization and nitrogen retention compared with those of other treatments. 3. NFE utilization was greatly (P$lt;0.01) improved and fat utilization was greatly (P$lt;0.01) decreased as the levels of kaolin supplementation were higher. 4. In general, crude fiber utilization was slightly improved as the levels of kaolin supplementation were higher, However it was found that there were a great differences between treatments.