Abstract: Based on the sweet pepper yield data in from 1996 to 1997 and meteorological data in the same period,mathematical statistical method was used to analyse the influence of the latter on the former.Favorable meteorological indexes were put forward.They were 14.5～15.0℃ of day minimum temperature of about a month after seeding,25.0～ 25.5℃ of day maximum temperature,400～450 mg/kg of CO₂ density,50℃ of heating pipe temperature after seeding,60000～65000 lx of illumination of about 80 days after seeding,75% of relative humidity of about 10 days after seeding.