The comprehensive environmental assessment is critical in the marine ecological environment, however it has an issue with erroneous performance positioning. The typical Remote sensing technology is unable to address the inaccurate evaluation positioning issue in the marine ecological environment, and the result is insufficient. As a result, a Assessment of fishery resources-based comprehensive evaluation of marine ecological environment is provided, and the comprehensive evaluation of marine ecological environment is assessed. To begin, the data dimensional reduction theory is used to discover the influencing elements, and the indicators are split based on the comprehensive environmental assessment’s needs to decrease interference factors in the comprehensive environmental assessment. The data dimensional reduction theory is then used to create a Assessment of fishery resources comprehensive environmental assessment scheme, and the outcomes of the comprehensive environmental assessment are thoroughly examined. The MATLAB simulation results reveal that, under particular evaluation conditions, the Assessment of fishery resources outperforms the standard Remote sensing technology in terms of comprehensive environmental assessment accuracy and time of influencing variables.