Abstract: With cytoplasmic male sterility line 392A, recessive double-family genic male sterility line 86A and dominant double-family genic male sterility line 629A in rapeseed(Brassica Napus L) as materials, we do cell anatomy research on the anther abortion processes of male sterility lines in rapeseed(Brassica Napus L) and make a comparison with 392B. The result indicates that 86A and 629A both belong to pollen female cell abortion and whether 392A will have an abortion is decided by temperature. When it is≥10℃ on the average during the day, there will be no pollen sacs and sterility arises. When the temperature is lower, fertility happens. We also find that 392A is influenced by temperature before the period of archesporical cells.

Key words: rapeseed(Brassica Napus L), male sterility line, anther abortion, cell anatomy