This paper studied the experimental procedures,, test equipment and test methodology of the melt spraying method. Meanwhile, according to performance index of lithium orthosilicate (Li4SiO4) ceramic pebbles to optimize the melt spraying method. Test analysis of the diameter of orthosilicate pebbles, degree of spheroid of orthosilicate pebbles, surface topography of orthosilicate pebbles, metallographic structure of orthosilicate pebbles, section morphology, crushing strength and phase composition. Results in this work indicate that the lithium orthosilicate (Li4SiO4) ceramic pebbles with a flat or even surface，porous internals, diameter of orthosilicate pebbles between 0.9~1.1mm,density of orthosilicate pebbles more than 90%T.D., the mean crushing strength is 25N, the degree of roundness is 1.027 can be obtained by the optimized melt spraying method. The optimization process provides a basis for obtaining the low cost and high performance of the lithium orthosilicate (Li4SiO4) ceramic pebbles.
