An absorbent product for receiving excrement from a wearer, comprising: a liquid-pervious top sheet; a water-repellent or liquid-impervious back sheet; and an absorbent part located between said top sheet and said back sheet, wherein said absorbent part comprises: an upper absorbent layer having a fiber assembly layer in which an opening is formed at a position facing a crotch region of a wearer; and an absorbent sheet (222, 222a, 222b) which is located between said upper absorbent layer and said back sheet and which covers said opening at the lower side of said opening, said absorbent sheet comprises: two sheets (2221, 2223); and super absorbent materials (2213, 2222) which are located between said two sheets and which are fixed to at least one of said two sheets, and characterized in that a non-absorbent area (2225, 2227, 2227a) lies between said two sheets and spreads continuously from positions under said opening along a longitudinal direction of said absorbent part in the form of lines and absorbent areas extend continuously in the longitudinal direction in the form of stripes such that each non-absorbent area lies between two absorbent areas adjacent to each other, and a density of said super absorbent materials in said non-absorbent area is lower than that in the absorbent area (2224, 2226) of said absorbent sheet or said super absorbent materials do not exist in said non-absorbent area. a liquid-pervious top sheet; a water-repellent or liquid-impervious back sheet; and an absorbent part located between said top sheet and said back sheet, wherein said absorbent part comprises: an upper absorbent layer having a fiber assembly layer in which an opening is formed at a position facing a crotch region of a wearer; and an absorbent sheet (222, 222a, 222b) which is located between said upper absorbent layer and said back sheet and which covers said opening at the lower side of said opening, said absorbent sheet comprises: two sheets (2221, 2223); and super absorbent materials (2213, 2222) which are located between said two sheets and which are fixed to at least one of said two sheets, and characterized in that a non-absorbent area (2225, 2227, 2227a) lies between said two sheets and spreads continuously from positions under said opening along a longitudinal direction of said absorbent part in the form of lines and absorbent areas extend continuously in the longitudinal direction in the form of stripes such that each non-absorbent area lies between two absorbent areas adjacent to each other, and a density of said super absorbent materials in said non-absorbent area is lower than that in the absorbent area (2224, 2226) of said absorbent sheet or said super absorbent materials do not exist in said non-absorbent area. an upper absorbent layer having a fiber assembly layer in which an opening is formed at a position facing a crotch region of a wearer; and an absorbent sheet (222, 222a, 222b) which is located between said upper absorbent layer and said back sheet and which covers said opening at the lower side of said opening, said absorbent sheet comprises: two sheets (2221, 2223); and super absorbent materials (2213, 2222) which are located between said two sheets and which are fixed to at least one of said two sheets, and characterized in that a non-absorbent area (2225, 2227, 2227a) lies between said two sheets and spreads continuously from positions under said opening along a longitudinal direction of said absorbent part in the form of lines and absorbent areas extend continuously in the longitudinal direction in the form of stripes such that each non-absorbent area lies between two absorbent areas adjacent to each other, and a density of said super absorbent materials in said non-absorbent area is lower than that in the absorbent area (2224, 2226) of said absorbent sheet or said super absorbent materials do not exist in said non-absorbent area. two sheets (2221, 2223); and super absorbent materials (2213, 2222) which are located between said two sheets and which are fixed to at least one of said two sheets, and characterized in that a non-absorbent area (2225, 2227, 2227a) lies between said two sheets and spreads continuously from positions under said opening along a longitudinal direction of said absorbent part in the form of lines and absorbent areas extend continuously in the longitudinal direction in the form of stripes such that each non-absorbent area lies between two absorbent areas adjacent to each other, and a density of said super absorbent materials in said non-absorbent area is lower than that in the absorbent area (2224, 2226) of said absorbent sheet or said super absorbent materials do not exist in said non-absorbent area.