Abstract: Two hundred and seventy-two 1 day old miscellaneous broilers （Cobb 1500×Hisex） were randomly divided into 4 groups with 2 repeats per group, 34 miscellaneous broilers for each repeat and male and female accounted for a half resp. Group Ⅰ was blank control, and 0.5 %, 1.0 % and 1.5 % bee pollens were added into Group Ⅱ, Ⅲ and Ⅳ resp. Four 7, 14, 21, 28, 35 and 42 days old chickens were randomly sampled from each repeat, the liveweight and fresh weight of immune organs （spleen, thymus and bursal） were weighed, the immune organ indexes were calculated, and the relative growth and absolute growth of immune organs were analyzed, and the effect of bee pollen on the growth of immune organs of miscellaneous broilers were researched. The results showed that the spleen index of Group Ⅲ was significantly lower than that of control group （P〈0.05）when they were 35 days old; that of Group Ⅳ was significantly lower than that of control group （P〈0.05）when they were 42 days old. There was no significant difference between all the days groups in thymus index （P〉0.05）.The bursa of fabricius index of Group Ⅳ was obviously higher than that of control group （P〈0.05）when they were 35 days old.