Understanding the adhensiveforce between the copper fibre fiber and microgroove of composite wick structure is very important in designing the heat column. In this study, a composite wick structure of copper fiber sintered on microgrooves was fabricated by multi cutter milling and hightemperature solidstate sintering. An ultrasonic vibration experiment was conducted to investigate the effect of sintering parameters and copper fiber parameters on the adhesive force of composite wick structure. Results indicated that sintering parameters such as sintering time, sintering temperature, temperature rising rate, sintering pressure and copper fiber parameters have an important effect on the adhesive force between copper fiber and microgroove of heat column wick structure. When the composite wick structure was fabricated by copper fiber with sintering layer's thickness of 1mm, copper fiber diameter of 50 μm, sintering at 900 ℃ for 60 min under 0.45 MPa at 5 ℃/s,the best adhesive effect can be obtained for the wick structure of heat column.