Hydatid cyst is a contagious disease formed by the pathogen Echinococus granulosus. Pulmonary and liver hydatidosis is the common form of the disease. However primary spinal hydatid cyst is rarely seen and compromise less than 1% of all hydatid cases. Primary spinal hydatid cyst and vertebral compression fracture association is very unusual. In this report we present a case of thoracic vertebral compression due to primary spinal hydatid cyst and discuss the important features of this rare disease.