PROBLEM TO BE SOLVED: To provide an absorbent sheet for pets capable of acquiring a pH value of urine even when some time has elapsed from urination.SOLUTION: The absorbent sheet for pets includes a liquid permeable surface sheet, a liquid-impermeable back sheet, and an absorber both surfaces of which are wrapped by crepe paper, that is interposed between the surface sheet and the back sheet and includes a superabsorbent polymer. The absorbent sheet further includes a pH discrimination part on the crepe paper in the surface sheet side or on the surface sheet, the pH discrimination part being formed of functional ink that exerts a function by getting wet. The absorber located in a lower side of the pH discrimination part is formed with an area where no superabsorbent polymer is present.
