本文用静水生物实验法进行了Ｚｎ、Ｃｕ、Ｐｂ、Ｃｄ金属离子对海洋底栖鱼类牙鲆（Ｐａｒａｌｉｃｈｔｈｙｓｏｌｉｖａｃｅｕｓ）仔鱼的成活影响研究。结果表明：Ｃｕ（２＋）、Ｃｄ（２＋）、Ｚｎ（２＋）、Ｐｂ（２＋）对牙鲆仔鱼２４ｈＬＣ（５０）分别为１．１４、１．５１、４．６８、５．８９ｍｇ／ｄｍ３．４８ｈＬＣ（５０）分别为０．１４、０．８３、０．９９、３．４７ｍｇ／ｄｍ３．７２ｈＬＣ（５０）分别为０．０６、０．３６、０．７１、０．９３ｍｇ／ｄｍ３．９６ｈＬＣ（５０）分别为０．０２、０．１４、０．４３、０．５３ｍｇ／ｄｍ３．Ｃｕ（２＋）对牙鲆仔鱼的毒性最大，Ｐｂ（２＋）的毒性最小．４种金属离子对仔鱼的毒性顺序依次为：Ｃｕ（２＋）＞Ｃｄ（２＋）＞Ｚｎ（２＋）＞Ｐｂ（２＋）． In this paper, the effects of Zn, Cu, Pb and Cd metal ions on the survival of larvae of marine benthic fish (Paralichthys olivaceus) were studied by means of hydrostatic experiments. The results showed that 24h (50) of Cu (2 +), Cd (2 +), Zn (2 +) and Pb (2+) were 1.14, 1.51, 4.68 and 5.89 mg / dm3, respectively. 48hLC (50) were 0.14,0.83,0.99,3.47mg / dm3.72hLC (50) were 0.06,0.36,0.71,0.93mg / dm3.96hLC 50) were 0.02,0.14,0.43,0.53mg / dm3 respectively. Cu (2+) had the highest toxicity to Paralichthys olivaceus and Pb (2+) had the least toxicity. The toxic order of the four metal ions to larvae was as follows: Cu (2 +)> Cd (2 +)> Zn (2 +)> Pb (2+).