Acetylcholinesterase (AChE)is a biologic catalyst which is made up with protein molecule. It plays an importantrole to keep the nerval system in gear. In this study, AchE-carring cells from different sources were disrupted by means of mechanical dispute and chemical osmosis., and the partition of GST-AchE was carried on by Sepharose 4B and Sephadex G-100. Comparing the consequences with feasibility and validity, relative well conditions in the AchE partition and purification were confirmed.