A mating design, including full-sib and half-sib Cata lpa bungei was conducted. The germination abilitywas studied. The temperature, soaking and lighting time and p retreatment that could influence on Ca talpa bungeiseed germination were studied. The result showed that the difference of germination rate and energy among differentmating combinations was extremely significant. The influence of the individual p lant to the germination rate waslower than that of different variety. The germination rate of the combination C. bungei and C. fargesii was alwayslow. The germination rate and energy of two set of recip rocal crosseswere very similar. The germination rate was thehighest for soaking the seed for 24 hours at a constant temperature of 25 ℃ then germinating it at a changingtemperature 20 - 30 ℃, the difference was remarkable. Another result, an 8-hour-long lighting daily was moreadvantaged for the germination of the seed than that in a comp letely dark condition; the germinating rate of the seedstored at a temperature of 5 ℃ for a week after soaking is also much higher than that stored at a low temperature.