Self-reliance is a concept which can reflect a closed economical system in most of previous economical study, and in most cases become noteworthy in closed economical structure and political social communication. Nevertheless, todays economic has different meaning for self-reliance. By globalization view and set free the economical mechanism, it should be noted that, self-reliance has two primary meaning: first the minimum reliance in production process and second, minimum reliance in net production process and trading with foreign countries (specially, with specific country). So, in recent studies, making high degree of dependency of international economy, next to making dependency in domestic economy, could be interpreted as increasing a relativity self-reliance, but it is possible whether the production process done with least reliance on foreign countries. If we investigate Iran petrochemical industry regardless to upward and downward relationship, after displaying the opportunities and restrictions of Iran petrochemical industry, we will analyze the self-reliance due to production process with parameters such as how to provide raw material, proficiency, science, technology and machinery. Generally this survey shows high relativity self-reliance in this industry. In other words, examining the economic-joinery self-reliance index of petrochemical industry in 18 years period (after war, 69-86) shows: extreme reduction in Degree of Reliance to Trade of Petrochemical products, new leap in increasing trend of Level of International Trade of them from 82, since 74 rapid accretion in Integration of International Trade of Petrochemical products and finally gradual reduction in Share of International Trade of Petrochemical industry from trade of country thereupon reducing trend of Exchange Conducting Index of Petrochemical industry and afterwards salient increase of it thereupon extreme increasing trend of Exchange Bringing Index of Petrochemical industry. Also by using Granger causality test we find that there exist two sided relationship between economic self-reliance index of Iran's petrochemical industry and economical growth in this industry. Up to this point, we are investigating petrochemical industry passivity, regardless to previous and future relationship in production process. But systematic view on industrial group inclusive petrochemical industry (in middle) shows non self-reliance of this set, therefore of non development in further petrochemical industry (that gets raw material from petrochemical industry). Indeed high amount of raw material such as oil and gas was the main reason for the very self-reliance of petrochemical industry; but according systematic view is one of the most important propellants of skew development in this system.