The invention belongs to the technical field of metallurgical auxiliary materials, and particularly relates to a formula and production process of low-carbon casting powder of titanium-containing stainless steel. The production process comprises the following steps: S1, raw material preparation: sequentially weighing the following raw materials in parts by weight: 15-19 parts of 330 carbon black, 8-12 parts of medium carbon graphite, 9-13 parts of amorphous graphite, 5-9 parts of a binder, 11-15 parts of industrial sodium carbonate, 7-11 parts of wollastonite, 15-19 parts of perovskite, 3-7 parts of blast furnace slag, 2-6 parts of fluorite, 12-16 parts of cryolite, 24-28 parts of sodium fluoride and 12-16 parts of organic water for later use; and S2, grinding treatment: performing grinding treatment on the 330 carbon black, the medium carbon graphite, the amorphous graphite, the binder, the industrial sodium carbonate, the wollastonite, the perovskite, the blast furnace slag, the fluorite, the cryolite and the sodium fluoride in the step S1. The surface of the prepared casting powder is rougher, and longitudinal cracks can be effectively prevented from appearing on the surface of a slab.