Objectives: As a result of global warming, precipitation is likely to increase at certain area (high latitudes). However, the mechanisms that human activity is influenced by global climate change are far from completely understood. We try to analyze the relationship between industrial emission (trace metal, nitrogen and phosphorus) and climate signature (precipitation) by Chinese industrialization progresses. Methods: Mainly by using the public data from Bulletin of Environment in China, Bulletin of Marine Environmental Status of China and some data of our experiments, we get the analyzed result. Results: Annual average temperature in China after industrialization is significantly increased, whereas annual average precipitation in China after industrialization is no significantly difference. Phytoplankton increases evaporation of seawater and the relative humidity. Phytoplankton biomass will be different in different stages of environmental pollution in coastal areas. The higher relative humidity of Guangzhou (near the second-third class pollution coast-Shenzhen coast with higher phytoplankton biomass) has higher precipitation; in contrast, lower relative humidity of Shanghai (near the inferior fouth class Zhejiang coast) has lower precipitation recent years. Conclusions: Industrial emissions may have two competing effects: one is to promote the growth of phytoplankton and then cause higher seawater evaporation rates and precipitation; another is to decrease water vapour pressure by serious pollution, which then reduces the seawater evaporation rate and precipitation. With temperature increasing, the precipitation is likely to increase only at low pollution area (high latitudes).