This paper aims to evaluate the advantage degree of the major marine industries in Shandong Peninsular Blue Zone based on the fuzzy comprehensive evaluating model. The paper calculates the probability distribution of advantage degree of various marine industries from 2001 to 2010，determines the rank of each marine industry and identifies the overall，strategic and potential marine advantageous industries. The overall ones in Shandong Peninsular Blue Zone are ought to formulate power-oriented and transferable development strategies；the traditional ones ought to formulate conservative，adjustable development strategies，the strategic ones ought to formulate strategic and joint development strategies and the potential ones ought to formulate aggressive and opportunity development strategies.