Abstract: The planetary orbits in solar system and opposition times are calculated for 1950～2050. By cases analyzing between El Ninño and the planetary motion during 1951～1989, a relationship has been constructed that all El Ninño events occurrded in current years or in next years when the four planets(Mars, Jupiter, Saturn, Uranus) were opposite to sun at the extreme value of heliocentric celestial latitude. Moreover, the El Ninño events are easily to occure if the opposition appeared in March and Augest. According to these facts, El Ninño events in future 50 years have been predicted.