In the framework of the design of Cisadane Cable Stayed Bridge, a wind tunnel testing on scaled model has been conducted lo observe its aerodynamic forces. The wind tunnel which is used for test, was a low speed wind tunnel.The test results are the coefficient Ci, Cd and Cm. The coefficients can be used lo calculate the load of the structure, the lift Force and the pitching moment. Based on the test results, shape improvement of the proposed bridge deck is also considered.