The cultural examination was performed on 52cases of tinea capitis in chi ldren according to the selecting sta ndard.The results showed that the main pathogenic fungus was zoophilic Microsporum canis(64.7%).The oral dose of terbinafine depend ed on the body weight.After 4weeks treatm ent,the clinical and fungal cure rates were 68.9%and 83.1%respectively.After 6weeks treatment is 82.9%and 97.4%respectively.While 4weeks after treatment ,these rates were 90.2%and 100%resp ectively.There was no obvious side effects during th e therapy.