Abstract: The experiments of the variety, sowing date, fertilizer, density and application of paclobutrazol of rapeseed（Brassica napus L.） were carried out from 2015. According to the characteristics of rapeseed growth and development at different stages and local climatic conditions, the theory and comprehensive cultivation techniques suitable for double-low rapeseed high-yield cultivation in Jingzhou area of Hubei province were explored,with high and stable yield, high quality, low consumption and high benefit as cultivation objectives after many years of experimental research and production practice. The productivity of rapeseed was continuously improved, and the large area and high yield of rapeseed were created. Theoretical basis and technical support were provided for the rapeseed production.

Key words: rapeseed（Brassica napus L.）, Changyouza 69, high-yielding cultivation theory, stage development, complementary cultivation techniques