Abstract: It has been known that El Niño endangers marine lives and ecological environment, and causes climate anomalies in many regions around the world. In this paper, we consider three environmental elements: sea surface temperature, air pressure and precipitation. We adopt multiple interactive views to enhance the understanding of El Niño characteristics and to deepen the exploration and analysis. We use time series diagram and pixel matrix plots to analyze the decadal and seasonal patterns of El Niño, use color maps to analyze the spatial distribution of El Niño-related ocean environment elements. We constructed correlation maps of these three ocean environmental elements in the El Niño representative areas, which reveals their influence on the changes of the global ocean environmental elements. We use parallel coordinate system and scatter plot matrix to show the relationship between the three environmental elements and El Niño events. The data overlap rate measures the distinguish ability of the three environmental elements to El Niño events. Case studies and user feedback illustrate the effectiveness of our proposed method.