The purposes of this study wer 1) to study the preparedness 2) to compare the preparedness. 3) to test the level of knowledge and understanding of the ASEAN 4) to study the problems and suggestions, along with management and operational personnel of Local Administration Organization in Chakan District, Sakaeo Province to ASEAN. The instument was a rating scale questionnaire. The statistics used in this study were the percentage, means, standard deviation, t-test and F-test.