Human dental erosion is an irreversible loss of dental structure caused by acid dissolution, which can leads to tooth fracture, clinical crown loss and occlusal disorders. Early diagnosis, timely blocking the destruction of acidic substances and do the corresponding repairment according to the tooth defect is a challenge for dentists. This paper reports a case of porcelain laminate veneer restoration of tooth defect caused by early acid etching with minimal invasive and bonding repair in order to protect and repair the remaining tooth structure.