The behavior ecology of copulation and oviposition of Apis cerana cerana Fab. was studied. The results showed that temperature influence on the cell-covered time of Apis cerana cerana queen and drone induced the remarkable difference in their newborn weight and mature time (P < 0.05). Queen and drone fly frequency for discerning cell was 1.23-1.31 and 1.08-1.13, and duration was 0.12-0.13 h and 0.16-0.20 h. Their copulation fly frequency was 1.10-1.12 and 1.10-1.05, and duration was 0.22-0.23 h and 0.18-0.23 h. The most suitable temperature for copulation was 20-28 degrees C. The number of semen in side--oviduct of the queen in each copulation fly was 3.37 x 10(6)-4.15 x 10(6), and in natural copulation, semen number in spermathecal sac was 3.55 x 10(6)-3.62 x 10(6). There was a direct relationship between queen newborn weight and ovulation number. The annual effect of climate and flower fertility on the queen's ovulation number was obvious.