Abstract: In 2021, The observation of the flowering period of 10 main oil tea improved varieties in Poyang, Yichun and Yongxiu, Jiangxi Province, the flowering law of different locations of each oil tea improved variety was preliminarily found out.The results showed that the first, primordiad, full and final flowering period of different varieties were different in diverse locations.The flowering period of 10 improved varieties is mainly concentrated in November, and the proportion of flowering varieties in the three places is the largest, which is 50%, 77.77% and 50% respectively; Changlin 40, which took the longest time, Ganxing 48, Up to 20.67 d; which took the shortest time, up to 11.33 d; the proportion of the three improved varieties entering the initial flowering period and the first flowering period in late October is 10%~60%, and the proportion of the first flowering period in mid November is more than 77.77%; the proportion of entering in the first and middle of November reaches the peak, and the proportion can reach 50%~80%; the last flowering period is the highest in the first ten days of December, reaching 44.44%~80.0%; the total flowering duration of the 10 varieties was 28~74 days, and the average flowering time was the longest in Poyang, up to 48 days, and the shortest in Yongxiu, 37.33 days; the coefficient of variation of Poyang Camellia oleifera varieties at flowering stage is the largest, up to 29.88%, and Yongxiu's is only 20.04%; Ganshi 84-8 and Changlin 4, which have the longest flowering period in three places, are 46.33 d and 43.33 d, and Ganwu 1 and Ganshi 83-4 are the shortest, only 38.67 d and 36.67 d; It is preliminarily determined that Ganxing 48, Changlin 3, Changlin 4 and Changlin 53 are the main varieties in Poyang; Ganshi 84-8, Changlin 4, Changlin 53, Changlin 3, Ganshi 83-4, Ganwu 2, Ganwu 1, Changlin 40 and Ganxing 48 are main and compatible varieties in Yichun; Yongxiu Ganwu 1, Changlin 40, Changlin 53, Changlin 3 and Ganshi 83-4, Ganwu 2 and Ganshi 84-8, Ganwu 1 and Changlin 18 are the main and matched varieties.The results provide a theoretical basis for the configuration and combination of Camellia oleifera cultivation in Jiangxi.