The trowel shovel, the key component of the nudus harvester, is easy to wear and corrode after working in seawater for a long time, which leads to the failure of the parts. To improve its hardness and corrosion resistance, a reinforcement layer can be applied to its surface to extend its lifespan. In this study, XL-F2000T laser was used to cladding 10%, 20% and 30% WC and Ni on the surface of 06Cr17Ni12Mo2 stainless steel as reinforced coatings. Use MHVD-1000AT hardness testing equipment to measure the hardness of the cross section. The phase composition was analyzed by Shimadzu XRD. The corrosion resistance in 3.5% NaCl solution was tested by CS Studio electrochemical workstation. The findings suggest that a WC+Ni60 composite coating can significantly enhance the surface hardness of 06Cr17Ni12Mo2 stainless steel. While the average hardness increases with WC content, the cross-sectional hardness of the sample clad with 30%WC+Ni60 displays significant fluctuation, whereas the hardness of the 10%WC+Ni60 cladding layer remains relatively stable. Furthermore, each cladding layer′s self-corrosion potential Ecorr is positive relative to the substrate, with 10%WC+Ni60 exhibiting superior corrosion resistance. Comprehensive comparative analysis shows that 10%WC+Ni60 can ensure both high, consistent hardness and excellent corrosion resistance.