ABSTRACT : Fifteenth isolates of C. sakazakii were obtained from previous studies of the sample (infant formula, cerebrospinal fluid and blood). All isolates C. sakazakii identification based on microscopic, biochemical test and confirmed by 16SrRNA. We studied the movement of all isolates and study adhesion to polystyrene plate, adhesion and invasion to Esophageal adenocarcinoma (SKG-GT-4) for four isolates [Cerebrospinal fluid (CSF5), Bloods (B 1), Dialak (A1c), Novolac Allernova (C1)] and its cytotoxicity. Results showed that all isolates can move after 4 hours of incubation and increased after 8 hours, the isolates moved to different distances strong, medium, and weak. The results showed that the number of C. sakazakii colony adherent to polystyrene plate was more than 300 cfu for four isolates. while adhesion to (SKG-GT-4) the results showed the number of C. sakazakii colony adhesion to (SKG-GT-4) cell line in dilution (1 : 10 and 1 : 100) were more than 300 cfu to 4 isolated. Finally the colony numbers in the invasion SKG-GT-4, the results showed that the number was CSF5 (200cfu), A1C (183cfu), B1 (175cfu), C1 (290cfu). Cytotoxicity of C. sakazakii was less. In conclusion, C. sakazakii can move, adhesion to polystyrene, adhesion to, invasion to Esophageal adenocarcinoma and cytotoxic