To provide a dental porcelain composition that can be used for a dental prosthesis device, particularly a dental prosthesis device made of ceramics, glass-ceramics, or glass, does not require skilled techniques, suppresses dripping during technical work and a sink mark after firing, and exhibits excellent aesthetic property after firing and a manufacturing method thereof. To provide a dental porcelain composition comprising (A) glass and (B) organic solvent having a boiling point of 100 to 300 C., wherein the (A) glass includes (A-1) base material glass having a particle diameter D50 of 2 to 8 m and (A-2) base material glass having a particle diameter D50 of 25 to 45 m, and a particle diameter of the glass (A) satisfies D105 m, 5 m<D50<28 m, and 28 mD90.

To provide a dental porcelain composition that can be used for a dental prosthesis device, particularly a dental prosthesis device made of ceramics, glass-ceramics, or glass, does not require skilled techniques, suppresses dripping during technical work and a sink mark after firing, and exhibits excellent aesthetic property after firing and a manufacturing method thereof. To provide a dental porcelain composition comprising (A) glass and (B) organic solvent having a boiling point of 100 to 300 C., wherein the (A) glass includes (A-1) base material glass having a particle diameter D50 of 2 to 8 m and (A-2) base material glass having a particle diameter D50 of 25 to 45 m, and a particle diameter of the glass (A) satisfies D105 m, 5 m<D50<28 m, and 28 mD90.