Objective To detect the levels of eosinophil and eotaxin in the children with virus associated wheezing diseases,and explore the role of both in virus correlation breathing occurrence and development.Methods Sixty-eight cases of children with virus associated wheezing diseases were selected as observation group,and the other 42 cases of healthy children were selected as control group.The peripheral eosinophil count and serum eotaxin level were detected and compared in observation group and control group on the acute stage and recovery stage.Results The eosinophil count in observation group on the acute stage was (1.12 ± 0.62) × 1099/L,the recovery stage was (0.34 ± 0.13) × 109/L,control group was (0.16 ± 0.07) ×109/L,the eosinophil count in observation group on the acute stage was higher than that on the recovery stage and control group,the eosinophil count in observation group on the recovery stage was higher than that in control group,there were statistically significant differences (P ＜ 0.05).The eotaxin level in observation group on the acute stage was (437.2 ±87.6) ng/L,the recovery stage was (182.4 ±56.2) ng/L,control group was (84.1 ± 39.7) ng/L,the eotaxin level in observation group on the acute stage was higher than that on the recovery stage and control group,the eotaxin level in observation group on the recovery stage was higher than that in control group,there were statistically significant differences (P ＜0.05).There were positively correlated between the eosinophil count and the eotaxin level in observation group on the acute stage,recovery stage and control group (r =0.579,0.593,0.581,P＜ 0.05).Conclusions The eosinophils and eotaxin may be involved in the children with virus associated wheezing diseases pathophysiological process,the levels of the eosinophils and eotaxin can monitor the course change,and be helpful for clinical diagnosis and treatment.