Abstract: In view of problem that tension of scraper conveyor is difficult to effectively monitor in running process, a tension testing system of scraper conveyor based on finite element analysis was designed. The sensitive spot of tension between scraper and scraper chain was found by analyzing the force relation between the scraper and scraper chain. The tension of weak coupling point between the scraper and the chain was measured by embedded strain sensor in several scrapers, so as to obtain tension distribution of the scraper chain. The system realizes dynamic monitoring of tension of scraper conveyor chain.