Relationships between temperature and several reproductive traits of Otiorhynchus sulcatus Fabricius were investigated at 11, 15, 18, 21, 24, 27, 30, 33 and 36 ^oC, and an oviposition model was developed to predict the field occurrence of O. sulcatus egg population.  Newly emerged O. sulcatus adults were subjected to the temperatures in Rhododendron (R. caucasium x ponticum var. album) and the reproductive traits were monitored for all treatments during the 38-week experimental period.  Significant differences among temperature treatments were found in the length of preoviposition period, the number of egg production, egg viability, and adult weevil survival (P<0.05).  Weevil adults fed at temperature from 11 to 33 ^oC and oviposited only at the temperatures between 11 and 27 ^oC.  Within this range, the longest preoviposition period (152 d) and the fewest total number of eggs (67) were observed at 11 ^oC.  The shortest preoviposition period (35 d) was observed at 24 ^oC, while the largest egg production (1094) and highest egg viability (90 %) occurred at 21 ^oC.  Overall, adult longevity decreased as the temperature increased, with substantially short longevity at higher temperatures (e.g. 11 and 2 d at 33 and 36 ^oC, respectively).  A temperature range of 21-24 ^oC appeared to be optimum for reproduction.  The oviposition model of O. sulcatus was developed by incorporating the temperature-dependent components including total egg production, age-specific oviposition rate and age-specific survival rate.  Implication of the oviposition model was discussed for development of O. sulcatus population dynamics model and management strategies.