[Problem] To provide a novel technology that suppresses the leaking of urine, etc., from a pet sheet. [Solution] This pet sheet (100) for pet excrement has a fluid-permeable surface sheet (110) and a fluid-impermeable rear sheet (120). The pet sheet (100) has a first folded section (140) and a second folded section (141) that are formed by the folding of the surface sheet (110) and the rear sheet (120) so as to protrude on the surface sheet side. The surface sheet (110) and the rear sheet (120) positioned on both sides of the first folded section (140) and the second folded section (141), respectively, are configured so as to fold out and be used as the pet sheet (100). Ridge lines formed in the surface sheet (110) in the first folded section (140) and the second folded section (141) extend continuously along a first direction (10) parallel to the surface sheet (110), from one end of the surface sheet (110) in the first direction (10) to the other end thereof.
