Abstract:Based on NOAA (National Oceanic and Atmospheric Administration) monthly OLR data during 1979 to 2019, NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research Reanalysis), ECMWF (European Centre for Medium-Range Weather Forecasts) ERA5 monthly reanalysis datasets, and East Anglia CRU (Climatic Research Unit) surface temperature data during 1960 to 2019, the effects of El Ni?o events with anomalous convection at different zonal position on regional climate are discussed. The results show that: Studying the effects of El Ni?o events on atmospheric circulation and regional climate anomalies based on the zonal position of tropical Pacific anomalous convection can avoid the limitation that SST anomalies cannot reflect the atmospheric convection anomalies fully. The anomalous convection is located near 140°W in Super El Ni?o events. Anomalous subsidence over tropical western and eastern Pacific is eastward, resulting in higher temperature and drought in northeastern Australia, northeastern Brazil, and more rainfall along the coasts of Peru and Ecuador during boreal autumn and winter. The PNA (Pacific-North American) wave train is located eastward, which significantly weakens the North American trough and brings warmer winter in North American. The geopotential height from Greenland to northwest Europe is low, making northern Eurasian significantly warmer. In Eastern El Ni?o, the anomalous convection is located near 160°W. Accordingly, anomalous subsidence is westward, causing dry northwestern Australia, northwestern South America and wet eastern Australia from boreal autumn to spring. The PNA wave train originates in south of Aleutian Islands and deepens the North American trough, causing severe cold winter in eastern North America. The anomalous convection is located near 180 ° in El Ni?o Modoki. Contrary to Super El Ni?o, the coasts of Peru and Ecuador is dry due to abnormal subsidence and most of Australia tends to experience drought from boreal autumn to spring under the controlled of anomalous anticyclone. The PNA wave train is located westward, resulting in severe cold winter in southeastern America. In the winter of Eastern and El Ni?o Modoki events, the Atlantic shows a negative NAO (North Atlantic Oscillation) pattern, and the temperature in the middle latitudes of Eurasian is low.