Embryonal rhabdomyosarcoma arises from the embryonal mesenchyme that differentiates into striated skeletal muscle, and about 15 to 20% of rhabdomyosarcomas are genitourinary in origin. Rhabdomyosarcoma of urogenital origin occurs at 2 age peaks: one in children between 2 and 6 year old and the other during adolescence between ages 15 and 19 year old. We report a case of embryonal rhabdomyosarcoma of the bladder in a 3-year-old male. He presented dysuria with straining and dribbling, and diagnosis was made by cystoscopy and biopsy. Since partial cystectomy was performed, and he has being received continuous Pulse VAC chemotherapy with radiotherapy.