A paper making shoe press belt, comprising: a reinforcing fiber substrate; and a polyurethane laminate; wherein: the reinforcing fiber substrate is embedded in at least one layer (2a, 2b, 2c, 21, 22) of the polyurethane laminate; at least one layer (2a, 2b, 2c, 21, 22) of the polyurethane laminate comprises a polyurethane obtained by heat-curing a urethane prepolymer together with a mixed curing agent; the urethane prepolymer comprises a terminal isocyanate group; the urethane prepolymer is obtained by reacting a diisocyanate compound (a) and a long-chain polyol (b); the diisocyanate compound (a) comprises at least one member selected from the group consisting of toluene-diisocyanate, diphenylmethane-diisocyanate, and paraphenylene-diisocyanate (PPDI); the mixed curing agent comprises 70-99.5 mol% of dimethylthiotoluenediamine (c) and 0.5-30 mol% of a curing agent (d); the curing agent (d) comprises at least one member selected from the group consisting of 4,4'-methylenebis(2,6-diethyl-3-chloroaniline), 4,4-methylene-dianiline, and 1,4-butanediol; and an equivalent ratio of active hydrogen groups of the mixed curing agent to isocyanate groups of the urethane prepolymer ((-H)/(-NCO)) is from 1.02 to 1.15. a reinforcing fiber substrate; and a polyurethane laminate; wherein: the reinforcing fiber substrate is embedded in at least one layer (2a, 2b, 2c, 21, 22) of the polyurethane laminate; at least one layer (2a, 2b, 2c, 21, 22) of the polyurethane laminate comprises a polyurethane obtained by heat-curing a urethane prepolymer together with a mixed curing agent; the urethane prepolymer comprises a terminal isocyanate group; the urethane prepolymer is obtained by reacting a diisocyanate compound (a) and a long-chain polyol (b); the diisocyanate compound (a) comprises at least one member selected from the group consisting of toluene-diisocyanate, diphenylmethane-diisocyanate, and paraphenylene-diisocyanate (PPDI); the mixed curing agent comprises 70-99.5 mol% of dimethylthiotoluenediamine (c) and 0.5-30 mol% of a curing agent (d); the curing agent (d) comprises at least one member selected from the group consisting of 4,4'-methylenebis(2,6-diethyl-3-chloroaniline), 4,4-methylene-dianiline, and 1,4-butanediol; and an equivalent ratio of active hydrogen groups of the mixed curing agent to isocyanate groups of the urethane prepolymer ((-H)/(-NCO)) is from 1.02 to 1.15. the reinforcing fiber substrate is embedded in at least one layer (2a, 2b, 2c, 21, 22) of the polyurethane laminate; at least one layer (2a, 2b, 2c, 21, 22) of the polyurethane laminate comprises a polyurethane obtained by heat-curing a urethane prepolymer together with a mixed curing agent; the urethane prepolymer comprises a terminal isocyanate group; the urethane prepolymer is obtained by reacting a diisocyanate compound (a) and a long-chain polyol (b); the diisocyanate compound (a) comprises at least one member selected from the group consisting of toluene-diisocyanate, diphenylmethane-diisocyanate, and paraphenylene-diisocyanate (PPDI); the mixed curing agent comprises 70-99.5 mol% of dimethylthiotoluenediamine (c) and 0.5-30 mol% of a curing agent (d); the curing agent (d) comprises at least one member selected from the group consisting of 4,4'-methylenebis(2,6-diethyl-3-chloroaniline), 4,4-methylene-dianiline, and 1,4-butanediol; and an equivalent ratio of active hydrogen groups of the mixed curing agent to isocyanate groups of the urethane prepolymer ((-H)/(-NCO)) is from 1.02 to 1.15.