T-AlSi10Mg aluminum alloy is a newly developed special aluminum matrix composite material for additive manufacturing based on conventional additive manufacturing Al-Si alloy with the introduction of nano-ceramic particles. Using vacuum melting gas atomization powder, powder sphericity is good, there are fewer satellite balls, low oxygen content, uniform particle size distribution, and good fluidity. It is suitable for the SLM process 3D printing and other rapid manufacturing and molding fields.