本文主要根据渤海增殖调查有关结果，着重讨论了渤海水化学环境现状及与饵料生物的关系，研究结果表明：（１）渤海水域温度呈典型温带水域海水特征，盐度、溶解氧及ｐＨ值适中，是温带各种海洋生物生长的良好环境；（２）营养盐与饵料生物及沿岸径流关系密切，具有明显的季节性变化；（３）与历史同期调查结果相比，无机氮有所上升，但无机磷和无机硅却下降较大，营养状况基本处于中下营养水平；（４）从Ｎ／Ｐ比值看，较历史资料上升较大，但仍低于Ｒｅｄｆｉｅｌｄ比值，无机氮仍为渤海浮游植物生长繁殖的主要限制因子 Based on the results of the Bohai Sea Fisheries Surveys, this paper focuses on the current status of chemical environment in the Bohai Sea and its relationship with the food organisms. The results show that: (1) the temperature in the Bohai Sea is characterized by seawater in typical temperate waters with salinity, dissolved oxygen and moderate pH , Which is a good environment for the growth of all kinds of marine life in the temperate zone. (2) Nutrients are closely related to the food organisms and coastal runoff, with obvious seasonal changes. (3) Compared with the historical survey results, inorganic nitrogen increased, However, the content of inorganic phosphorus and inorganic silicon decreased greatly, and the nutritional status was basically at the middle and lower nutrient level. (4) From the N / P ratio, it was larger than the historical data but still lower than the Redfield ratio. The main limiting factor for plant growth and reproduction