Two patients presented with intraluminal T1N0 squamous cell lung cancer. Poor lung function precluded surgical resection and/or external radiotherapy. They were treated up to 3 times with high-dose rate brachytherapy (10 Gy at 1 cm each session) with curative intent. Follow-up has been 54 and 25 months. Brachytherapy is an effective and well-tolerated bronchoscopic treatment alternative with a curative potential in patients with small T1N0 intraluminal lung cancer.