This aticle take recycling economy as a view, put the Eco-Efficiency of blue economic zone of Shandong peninsula as the research object, first built the suitable for blue economic zone Eco-Efficiency evaluation system, and by using the fuzzy AHP method, conducted a comprehensive evaluation of Eco-Efficiency to seven cities in blue economic zone. The results show that the Eco-Efficiency of cities in blue economic zone are significantly different, and cities are awaiting further improve in Eco-efficiency. Accordingly, this paper put forward suggestions from the view of low-carbon economy.