The purpose of this paper is to determine the effective factors on the resilience of Iran's trade system. Trade system vulnerabilities are considered as an important factor in reducing resilience. So, according to the existing resilience literature, and using the Grounded Theory approach, and the Bayesian Model Averaging approach, indicator factors were extracted. Four variables were identified in the presence of 23 variables; which include Risk index, oil export ratio to non-oil exports, free and official exchange rate differences, and Consuming imports to aggregate import ratio, as important variables. It shows that these variables should be considered more than other variables in assessing the effect of trade system.