Treatment of open fracture in long bones associated with soft tissue injury has extremely difficult to manage and has time consuming management problems. External fixation has been established as one of suitable technique of open fractures. It is suitable for patients with single long bone injuries requring short-term skeletal immobilization, or for more complex and difficulty cases, especially where associated soft tissue has sustained major injury. Shearer external fixation, a variant of external fixation, consist of pin blocks with Shearer pins, two outrigger tube, joint outrigger tube and central joint. It is two plane frame that provied a more balanced resistance to bending moment, compression and torsion. We have attempted to treat 19 cases of open fractures with Shearer external fixation from 1989 to 1990 at the department of Orthopaedic Surgery, Choong Ang Gil General Hospital. l. 17 of 19 cases (89.5%) had complete bony union and the mean time of bone union is 24.0 weeks. 2. In 11 cases applifed only with Shearer external fixation, 10 cases had satisfactory bony union within 23.1 weeks average. 3. In 8 cases with secondary internal fixation after primary Shearer external fixation, 7 cases had satisfactory bony union within 25.3 weeks average. 4. Sheraer external fixation frame allowed excellent functional freedom for patient to sit crosslegged (Tailor postition) and squat, therefore it was proved to be one of valuable adjuvant technique in the treatment of open fracture of the long bone.