In this work,6063 aluminum alloy-graphite joint intended for thermal conductive application were realized by applying Al-Cu-Si-Ni-Mg brazing filler metal and Ag-Cu-Ti pasted on high density graphite substrate to ensure wetting during the brazing process.The in-terface reactions during brazing and mechanical properties were studied using scanning electron microscopy(SEM)and shear test device.TiC was formed at the graphite/active Ag-Cu-Ti paste interface due to the reaction between Ti and C,and thus the wettability on the graph-ite was improved.It is shown that joint with a good quality can be produced at a brazing temperature of 550℃for 10 min.The average tensile strength of the joint is 21 MPa.thus the wettability on the graphite was improved.It is shown that joint with a good quality can be pro-duced at a brazing temperature of 550℃for 10 min.