The Swedish communist parties which split for various reasons have had a greater impact in the history of Sweden. Since the collapse of the Soviet Union，the Swedish communist parties and organizations have been greatly affected and Communist movement has fallen into ebb. However，Swedish communist organizations have continually participated in the domestic workers’ movements and international conferences in order to exert their influence and publicize their own claims. According to the Swedish communist parties，Sweden，the welfare model state of the capitalist world，has started to cut its welfare since the outbreak of the economic crisis. In this process，the Swedish Social Democratic Workers’ Party not only failed to make forward-looking decisions and take positive measures，but also fell into the confusion of role orientation and suffered a defeat in the Swedish election of 2010. The Swedish communists also made their criticism on the relationships between Sweden and the European Union，and between Sweden and NATO，etc.