To investigate the effect and safety of budesonide Turbuhaler® 100 μg/dose and 200 μg/dose twice daily for 6 weeks in Japanese children with bronchial asthma aged 5 years to 15 years old in need for inhaled glucocorticosteroid treatment. To compare the efficacy of budesonide Turbuhaler® 100 μg/dose and 200 μg/dose twice daily for 6 weeks to that of fluticasone Diskus® 50 μg/dose and 100 μg/dose twice daily for 6 week.