Taking Rhododendron hybrides as materials,we investigated the bud soluble sugar,starch,soluble protein and free amino acid and initial time of flowering under nine temperatures and light intensities treatments that were three day/night temperatures(6 ℃/0 ℃,22 ℃/16 ℃,30 ℃/24 ℃) combined with three light intensities(2 000/10 lx,7 500/5 500 lx,10 000/8 000 lx).The results showed that soluble sugar content and starch content increased all the forcing time following rising temperatures and light intensities.The soluble protein content increased in prophase,but decreased in anaphase in the early stage.It increased with the temperature and light intensity increasing,while it was conversely in the later stage.Whereas the change of free amino acid content was opposite to soluble protein.The initial time of flowering of the treatment(30 ℃/24 ℃,10 000/8 000 lx) was the earliest,18 days earlier than target date(Spring Festival).All the those explained appropriate higher temperatures and light intensities (22 ℃/16 ℃-30 ℃/24 ℃,7 500/5 500-10 000/8 000 lx) significantly enhanced accumulations and metabolisms of R.hybrides bud soluble sugar,starch,soluble protein and free amino acid,promoted buds development and blossom,in order to bring produces to market in advance.