An absorbent sheet for pets comprising: an excretion surface on which a pet excretes, a placing surface that is opposite to the excretion surface, a liquid-permeable top sheet that is disposed on the excretion surface side, a liquid-impermeable back sheet that is disposed on the placing surface side, an absorber that is disposed between the top sheet and the back sheet and absorbs liquid which has penetrated the top sheet, a core layer that is provided in the absorber and has a core layer top surface formed on a side of the core layer facing the excretion surface, a core layer back surface formed on a side of the core layer facing the placing surface, and a core layer side surface between the core layer top surface and the core layer back surface, a covering sheet that covers the core layer top surface, and an intermediate sheet that is disposed between the top sheet and the absorber, wherein: the absorbent sheet has a coloration region that is visible from the excretion surface side and forms a coloration pattern together with other regions of the absorbent sheet, the top sheet is formed to have a lower total light transmittance than the intermediate sheet, wherein the intermediate sheet comprises a composite nonwoven fabric having a meltblown nonwoven fabric layer between two spun-bond nonwoven fabric layers (121, 122) and having a basis weight of 8 to 25 g/m 2, the covering sheet comprises a first covering sheet that covers the core layer top surface and a second covering sheet that covers the core layer back surface, the core layer side surface and part of the core layer top surface, and the coloration region is formed in the first covering sheet. an excretion surface on which a pet excretes, a placing surface that is opposite to the excretion surface, a liquid-permeable top sheet that is disposed on the excretion surface side, a liquid-impermeable back sheet that is disposed on the placing surface side, an absorber that is disposed between the top sheet and the back sheet and absorbs liquid which has penetrated the top sheet, a core layer that is provided in the absorber and has a core layer top surface formed on a side of the core layer facing the excretion surface, a core layer back surface formed on a side of the core layer facing the placing surface, and a core layer side surface between the core layer top surface and the core layer back surface, a covering sheet that covers the core layer top surface, and an intermediate sheet that is disposed between the top sheet and the absorber, wherein: the absorbent sheet has a coloration region that is visible from the excretion surface side and forms a coloration pattern together with other regions of the absorbent sheet, the top sheet is formed to have a lower total light transmittance than the intermediate sheet, wherein the intermediate sheet comprises a composite nonwoven fabric having a meltblown nonwoven fabric layer between two spun-bond nonwoven fabric layers (121, 122) and having a basis weight of 8 to 25 g/m 2, the covering sheet comprises a first covering sheet that covers the core layer top surface and a second covering sheet that covers the core layer back surface, the core layer side surface and part of the core layer top surface, and the coloration region is formed in the first covering sheet. the absorbent sheet has a coloration region that is visible from the excretion surface side and forms a coloration pattern together with other regions of the absorbent sheet, the top sheet is formed to have a lower total light transmittance than the intermediate sheet, wherein the intermediate sheet comprises a composite nonwoven fabric having a meltblown nonwoven fabric layer between two spun-bond nonwoven fabric layers (121, 122) and having a basis weight of 8 to 25 g/m 2, the covering sheet comprises a first covering sheet that covers the core layer top surface and a second covering sheet that covers the core layer back surface, the core layer side surface and part of the core layer top surface, and the coloration region is formed in the first covering sheet.