We consider the so-called geodesic Witten diagrams (GWDs). GWDs are proposed recently as the gravity dual of conformal blocks(CBs) in the CFT side in previous work (arXiv: 1508.00501). We generalize this relation to Witten diagrams and CBs with spinning external and internal fields. In this talk, firstly I will review the relation between GWDs and CBs for the scalar case and introduce our work. This talk is based on the collaboration with Heng-Yu Chen and En-Jui Kuo (arXiv: 1702.08818).
