In today’s world, organizations and companies make a lot of effort to communicate with their customers in order to know more about their customers and use their ideas and opinions in order to meet the needs of customers and provide the best Provide services to them. In this vein, using social networks and activities in them will create a constructive relationship with people. These networks have a positive effect on the customers' view of a new product, and this positive effect and the increase in the customer's understanding of the product's features promote the purchase intention. The purpose of this article is practical, descriptive and correlational in nature and survey method. The employed software programs are SPSS22 and SmartPLS3. The studied community also includes; Instagram users are social network. The sampling method is simple random available and the sample size using structural equations is equal to 140 people. The data collection tools include "social network marketing" questionnaire, perceived value (Egert & Olaga, 2000) and purchase intention questionnaire. Cronbach's alpha of all variables is more than 0.95, which showed good reliability of the tool.  The validity of the tools was confirmed using content validity and confirmatory factor analysis technique. The results of the hypotheses testing indicate that the marketing activities of social networks on the value perceived has a significant effect on purchase intention, and perceived value has a significant effect on purchase intention, and social network marketing activities were also confirmed by perceived value on purchase intention.