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By contrasting the series of the incidence of coronary heart diseases from 1984 to 2000 with the corresponding meteorological data in the Beijing area. The seasonal and annual variations of the incidence of coronary heart diseases are revealed. The results of correlation analysis between the incidence of the diseases and several meteorological elements show that there exists obvious correlation between the incidence and such meteorological elements as pressure, wind, temperature and water pressure; the influence of meteorological elements on the diseases varies in different seasons. Thereby, the meteorological evaluating models of the monthly incidence of coronary heart diseases were established and the models have good fitting and predictive capabilities.