Providing photocatalytic titanium oxide that can exhibit antibacterial and antiviral properties when applied to various uses, antibacterial and antiviral photocatalytic titanium oxide slurry in which the photocatalytic titanium oxide is stably dispersed in a neutral region, and a method for producing the same To do. At least one selected from copper (II) phosphate and copper (II) pyrophosphate is added to at least a part of the surface of the titanium oxide particles with respect to 100 parts by mass of the titanium oxide particles. Antibacterial antiviral photocatalytic titanium oxide having a 50% cumulative particle diameter (D50) (based on light scattering intensity) of 5 to 200 nm, supported by 50 parts by mass.種々の用途に適用した際に、抗菌抗ウイルス性を発揮し得る光触媒酸化チタン、並びに該光触媒酸化チタンを中性領域で安定に分散した抗菌抗ウイルス性光触媒酸化チタンスラリー及びその製造方法等を提供する。 酸化チタン粒子の表面の少なくても一部に、酸化チタン粒子100質量部に対して、リン酸銅(II)及びピロリン酸銅(II)から選ばれる少なくとも1種を、銅基準で0.1~50質量部担持してなり、50%累積粒子径(D50)(光散乱強度基準)が5~200nmである抗菌抗ウイルス性光触媒酸化チタン。