Provided is cobalt-based alloy powder for laser cladding electricity conducting roller, the weight percentages of the chemical components of the material are that Cr is 24-30%, W is 6-10%, Mo is 3-6%, Ni takes 6-12%, Fe holds 2-10%, Mn is 0.5-2%, Si holds 0.2-2%, V is 0.1-0.6%, B takes 0.3-1.5%, C holds 0.5-2.5%, Y2O3 is 0-0.5%, Hf takes 0-0.5%, La2O3 holds 0-0.5%, Ce is 0-0.5%, and the rest is Co. The invention has the advantages that with multiple strengthened methods, the alloy substrate is strengthened and the crystal boundary quality is improved, which enables the alloy to achieve perfect combination property, thereby achieving medium rigidity and relatively high intensity of the alloy, simultaneously forming self-fluxing alloy and reducing alloy melting point, and increasing properties of oxidation resistance, abrasion resistance, corrosion resistance, and certain electricity conduction.