Abstract: Chinese cabbage, Minninhuang 1, was used in the experimentation to study the bolting of the vegetable in an attempt to increase the number of generations in cultivation. A two factors split plot experiment under 4 temperatures (i.e., 3, 6, 9, and 12℃) and 4 vernalization durations (i.e., 10, 20, 30, and 40 d) was conducted. The results showed that at a same temperature, an extended vernalization significantly shortened the days between planting to budding of the cabbages. However, when the vernalization was prolonged to 30 d, no apparent correlation was observed. On the other hand, under a same duration for the vernalization, the lower the temperature, the shorter time from sowing to budding and flowering it became. The shortest time duration was found at 3℃. Hence, the optimum conditions for the vernalization appeared to be 3 to 9℃ in 20 d.