[Objective] The study was to explore key techniques on plantlet culturing of Kalanchoe blossfeldiana and inducing it flowering.[Method] Use stem with buds of K.blossfeldiana as the material,the effects of disinfection time by HgCl2,ratio of plant growth regulator on contamination rate,propagation effect and plantlet flowering were studied.[Result] The effect was the best when disinfected by HgCl2 for 8 min,by which the contamination rate was 20%,being obviously lower than that of treatment without HgCl2 dis...