The hydrophilic surface structure is beneficial to the deposition of hydroxyapatite, the ingrowth of bone tissue, and the biological activity of the implant surface. Therefore, the preparation of hydrophilic surface structure is beneficial to the implant to work better in the body and improve the success rate of implant implantation. In this paper, using fiber laser, when the processing speed is 25 mm·s-1, the number of scans is 10, laser power is 14 W, and laser frequency is 10 kHz, the laser produced a high-energy laser beam on the material surface,the processed groove width was about 24 μm, and the contact angle was measured as 93.7°. Using anodizing method, the diameter of the nanotube prepared by electrolysis at 30 V for 2 h is about 65 nm. The nanotube helps to enhance the capillary force. The contact angle is measured as 43.8°; the contact angle of the sample prepared by laser processing and anodization is the smallest, with a value of 26.5°. The micro-nano composite structure increases the contact area and gives full play to the capillary effect of the nanotubes. The preparation of the micro-nano structure improves the hydrophilicity of the implant surface, and the fiber laser and anodization obtain a micro-nano composite structure, which provides a simple, easy,and effective method for the surface modification of the implant.