INFLUENCE TRADING ON LINETO BEHAVIOR PUBLIC CITY SEMARANGAbstractthe rapid development of information technology including Internet bringsgreat impacts in many aspects such as business and sales. Many companies and individuals use the internet as amedia for their sales and business. This will affect psychology's behavior in shopping to fulfill theirneeds . This study was aimed at identifying the profile of Semarang's society who are involved in e-commerce and figure out the effects of e-commerce towards the Semarang's people behavior . This study is a descriptive research with people in Semarang as the population . The samples were determined by using purposive method samplingnamely judgment sampling and quota sampling. The data were gathered through questionnaires and interviews. Thus, thedata collected were analyzed descriptive-quantitatively and descriptive- qualitatively. The study showed that 70% of Semarang people have done transactions online , and were dominated by women (58%). They are mostly high school educated (60%) under the age of 30 years old. Based on the type of the products bought , people mostly bought goods (90%) specifically, fashion clothes (63%) and electronics (24%). E-commerce sites that were used to shop online were variedacross various sites (8 sites).