A refrigerator comprising: a body ; a storage compartment (R1) disposed inside the body and including an opening ; a drawer configured to open and close the opening of the storage compartment ; and a sliding apparatus configured to slidably support the drawer against the storage compartment (R1), the sliding apparatus comprising: a first rail installed on an inner wall of the storage compartment (R1), a second rail installed on the drawer and configured to be slidable with respect to the first rail , and a drive unit installed on the first rail and configured to provide a driving force to slide the second rail through a power transmission unit , wherein the drive unit comprises: a housing coupled to a lower surface of the first rail ; a drive motor disposed inside the housing ; and a drive gear disposed outside the housing and configured to transmit a driving force of the drive motor to the power transmission unit , wherein the power transmission unit comprises a first rack gear installed on the second rail and configured to engage with the drive gear , characterised by an elastic member disposed between the first rail and the second rail to press the first rack gear against the drive gear . a body ; a storage compartment (R1) disposed inside the body and including an opening ; a drawer configured to open and close the opening of the storage compartment ; and a sliding apparatus configured to slidably support the drawer against the storage compartment (R1), the sliding apparatus comprising: a first rail installed on an inner wall of the storage compartment (R1), a second rail installed on the drawer and configured to be slidable with respect to the first rail , and a drive unit installed on the first rail and configured to provide a driving force to slide the second rail through a power transmission unit , wherein the drive unit comprises: a housing coupled to a lower surface of the first rail ; a drive motor disposed inside the housing ; and a drive gear disposed outside the housing and configured to transmit a driving force of the drive motor to the power transmission unit , wherein the power transmission unit comprises a first rack gear installed on the second rail and configured to engage with the drive gear , a first rail installed on an inner wall of the storage compartment (R1), a second rail installed on the drawer and configured to be slidable with respect to the first rail , and a drive unit installed on the first rail and configured to provide a driving force to slide the second rail through a power transmission unit , wherein the drive unit comprises: a housing coupled to a lower surface of the first rail ; a drive motor disposed inside the housing ; and a drive gear disposed outside the housing and configured to transmit a driving force of the drive motor to the power transmission unit , wherein the power transmission unit comprises a first rack gear installed on the second rail and configured to engage with the drive gear , a housing coupled to a lower surface of the first rail ; a drive motor disposed inside the housing ; and a drive gear disposed outside the housing and configured to transmit a driving force of the drive motor to the power transmission unit , wherein the power transmission unit comprises a first rack gear installed on the second rail and configured to engage with the drive gear , characterised by an elastic member disposed between the first rail and the second rail to press the first rack gear against the drive gear . <EOS>