The article discusses how to assess the capacity of the Bohai Sea Ring Area in China to support population, environment, and economic development without harming marine resources. The researchers used a method called fuzzy comprehensive evaluation to analyze various factors and determine the area's carrying capacity. They found that by constructing an indicator system, they could measure changes in capacity over time and guide economic activities in the region. The study applied Weber-Fischna law to set assessment standards and used D-S evidential theory to combine subjective and objective weights for more accurate results.