The work aims to reduce defects such as cracks and pores in laser cladding of Ni60A +WC alloy powder. Pasty Ni-based solder (BNi-1a) was added into Ni60A+WC alloy powder to reduce defects such as cracks and pores in laser cladding layers. Provided with power of 1 kW, scanning speed of 4 mm/s and spot diameter of nearly 2 mm, Rofin FL020 fiber laser was used for laser processing of baked pre-coated alloy cladding layers. Microhardness test was conducted to evaluate hardness of the cladding layers, morphology and phase structure of the layers were studied with SEM and XRD. Friction coefficient and wear resistance of the layers were evaluated with UMT and surface morphology tester. Composition of Cr and C alloy phase was optimized, and defects such as cracks and pores were reduced by as pasty Ni-based solder (BNi-1a) was added into Ni60A+WC alloy powder. For the cladding layer with pasty Ni-based solder, friction coefficient was nearly 0.45, friction coefficient of the cladding layer decreased by nearly 18%, wear resistance was also greatly increased, and cross-sectional area was nearly 0.50?10?3 mm. For the cladding layer without pasty Ni-based solder, cross-sectional area of the grinding crack was nearly 0.70?10?3 mm2. The addition of Ni-based solder (BNi-1a) can effectively reduce defects including cracks and pores, and improve wear resistance and reduce hardness, but it may reduce hardness of cladding layers.