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基于中国沿海海洋站监测数据,详细探讨了能够表征气候变化的中国沿海海洋气候关键指标-海表温度、海平面和海冰.监测结果表明:(1)中国沿海海表温度持续升高.1980-2019年,中国沿海海表温度上升速率为0.25℃/10年,2011年之后升温趋势尤为显著,2015-2019年连续五年处于高位.2019年,中国沿海平均海表温度较常年(本文取1981-2010年为气候基准期)偏高1.1℃,为1980年以来最暖年份.此外,本文基于四个长期海洋站探讨了1960-2019年极端海表温度变化特征.(2)中国沿海海平面加速上升,且区域差异明显.中国沿海海平面上升速率为2.4毫米/年(1960-2019年)、3.4毫米/年(1980-2019年)和3.9毫米/年(1993-2018年),其中渤莱湾、长江口、珠江口和海南沿海海平面上升较快.中国沿海极值水位总体呈明显上升趋势,且区域特征明显.1980-2019年,中国沿海年极值高水位上升速率为4.4毫米/年,其中山东烟台沿海上升速率最大,为9.9毫米/年.(3)渤海海冰冰期和冰量均呈明显下降趋势.1963-2018年,渤海沿海年度海冰冰期和冰量下降速率分别为0.7～1.3天/年和4.5～5.9成/年,其中冰量下降速率北部大于南部.2019年渤海冰情较常年偏轻.“,”Based on the observation data from China coastal marine stations, the key indicators of marine climate along China coast were explored, including sea surface temperature(SST), sea level and sea ice. Results show that: (a) The SST along China coast continues rising and increased by 0.25 ℃/decade during 1980-2019, the warming accelerated significantly after 2011 and it has been well above normal for five consecutive years since 2015. In 2019, the average SST along China coast was 1.1 ℃ higher than normal ( with 1981-2010 taken as a reference period ) , ranking the highest since 1980 . Besides, the SST extremes have been explored based on four long-term marine stations for the period 1960-2019. (b) Sea level along China coast continues to rise at an accelerated rate. The mean sea level rise rate along China Coast was about 2.4 mm/yr during 1960-2019, 3.4 mm/yr during 1980-2019, and 3.9 mm/yr during 1993-2019, with significant regional differences. The relatively stronger sea level rise trends were observed along the coastal waters of the Bohai Bay, the Laizhou Bay, the Yangtze River Estuary, the Pearl River Estuary, and the Hainan Island, respectively. Besides, the extreme sea levels along China coast showed an obvious upward trend from 1980 to 2019. During this period, the annual rise rate of extreme high water level along China coast was 4.4 mm/yr, and had obvious regional characteristics, with the highest rate of 9.9 mm/yr observed at Yantai of Shandong Province. (c) The annual sea ice period and sea ice cover of the Bohai Sea ( BS ) decreased substantially during 1963-2019 by 0.7-1.3 days/yr and 45-59 ％/yr, respectively, and the decrease rate of ice cover is larger in the north than that in the south. 2019 was the year of light icing.