Objective  To provide anatomic basis for clinical application and athletic medicine, by analyzing the thickness of superior and inferior border of interarticularis(STI and ITI ), the distance between superior and inferior border of interarticularis(DSII) and the thickness of vertebral laminae(TVL) on adolescent thoracic and lumbar spine.  Methods  25 specimens（T1～L5）from adolescents(aged from 14 to 19 years, averagely 16.5 year) were measured and compared, with the anatomic parameters of STI, ITI, DSII and TVL. Results  STI increased gradually, from T1 to T12 level（ranged from 2.96±0.69 mm to 3.74±0.55 mm）, and then decreased from L1 to L5 level (ranged from 4.29±0.98mm to 4.83±0.80mm); ITI increased from T1 to L5 level（ranged from 4.52±1.00mm to 7.30±1.24mm); DSII increased from T1 to T12 level and decreased from L1 to L5 level（ranged between 17.51±3.55mm and 7.90±1.71mm）; TVL ranged between (17.51±3.55)mm and (7.90±1.71)mm, and presented the shape of sella.  Conclusions  The results of thoracic and lumbar vertebral laminae and interarticularis in adolescents show that, ITI is always thicker than STI.