The invention discloses an electronic powder slurry for a super-long-service-life high-power energy-saving lamp, the electronic powder slurry adopts the coprecipitation technology and generates a co-crystallized carbonate crystal through the coprecipitation reaction of carbonate and nitrate; the crystal is taken as the main material of the electronic powder, colloidal solution is prepared by adding solvent, adhesive and electron emission material, and the colloidal solution can provide the substances which are needed for the electron emission as the electronic powder slurry used for the super-long-service-life high-power energy-saving lamp. The electronic powder slurry can solve the problems of easy sputtering, bombardment intolerance and short service life of the electronic powder duringthe using process of the high-power energy-saving lamp and improve the bombardment resistance capacity of the electronic powder. The electronic powder slurry can greatly prolong the service life of the high-power energy-saving lamp, and the service life can be improved by more than 500 percent.