Abstract: It was studied on dynamics of biological characteristic in suitable processing juice for leaves of non-brussels sprouts (Brassica oleracea vat. Germmifera) by years of experimental observation. The result indicated showed that there were different growth rate for the plant height of different varieties of non-brussels sprouts at different times. There were mainly four phases in the plant growth, i.e. the first slow growing phase (September 17-October 17), the second quick growing fastigium (October 18-30), another slow growing phase (October 31-November 16) and secondary fastigium (November 17 future). There were approximately three growth periods in leaves growth, that is first slow increasing period, then inapparent wave crest and third slow increasing period. The growth of plant spread angle showed a parabola curve, i.e. the wave crest was obvious and mainly among October 1-17. There were three phases in growth of the leaves length, that was faster growing period (September 17-October 17), slower growing period (October 18-November 16) and another faster growing period (November 17 onwards), the both undulation were unconspicuous. Increasing of leaf width was quite complex. Growing of leaf width was mainly in the earlier period (September 17-October 17). It was slower in the later period until stopped growing in the first ten days of November. Growing of leaf was increased a little. All varieties of stem diameter growth was almost finished in the mid-September to the end of October. It was no longer growth by entering November. Biological characteristics of three main varieties was described to fill the domestic blank in the end.