An aromatic amine fluorescence probe represented by the following general formula: in which n is 0 or 1, one of S 1 and S 2 represents (i) a molecular chain-bound group in which a molecular chain made of an oligonucleotide capable of binding with a sample molecule is bound via a divalent spacer having an alkyl chain to Ar 2 or N,, that may have a divalent group selected from the following Gp1 at the chain thereof, or (ii) a reactive group selected from the following Gp3, the other of S 1 and S 2 represents a group selected from the following Gp2, R 1 and R 2 are individually a hydro group, R 3 represents a group selected from a hydro group, an alkyl group that may have a substituent selected from the following Gp2, an aryl group that may have a substituent group, and a vinyl group that may have a substituent group, and Ar 1 is a phenylene group and Ar 2 is one of a phenylene group, a naphtyhlene group, a phenanthrene group and an anthrylene group in which Ar 2 has at least one substituent group selected from an alkyl group, an aryl group, a cyano group, a trifluoromethyl group and a halo group and when n is 1, Ar 1 and R 1 or/and Ar 2 and R 2 may join together to form a ring, provided that Gp1 is a divalent group and represents an arylene group that may contain a hetero atom, a vinylene group, a carbonyl group, an oxy group, an oxycarbonyl group, a thio group, a sulfinyl group, a sulfonyl group, an imino group, a urylene group, an amide group or a silylene group, Gp2 is a monovalent group and represents a hydro group, an alkyl group, an aryl group, a vinyl group that may contain a substituent group, an amino group, a mercapto group, a hydroxy group, a carbamoyl group, a sulfino group, a sulfo group, a carboxy group or a halo group, and Gp3 is a monovalent group and represents an N-hydroxysuccinimide ester group, a hydroxysulfosuccinimide ester group, an imide ester group, an isothiocyanate group, an isocyanate group, a maleimide group, a carboxyl group, an aldehyde group, a glyoxal group, an imido ester group, an oxirane group, a triazine group, a carbodiimide group, an aziridine group, a halogenated acyl group, a halogenated alkyl group, a halogenated sulfonyl group or a vinyl sulfone group. one of S 1 and S 2 represents (i) a molecular chain-bound group in which a molecular chain made of an oligonucleotide capable of binding with a sample molecule is bound via a divalent spacer having an alkyl chain to Ar 2 or N,, that may have a divalent group selected from the following Gp1 at the chain thereof, or (ii) a reactive group selected from the following Gp3, the other of S 1 and S 2 represents a group selected from the following Gp2, R 1 and R 2 are individually a hydro group, R 3 represents a group selected from a hydro group, an alkyl group that may have a substituent selected from the following Gp2, an aryl group that may have a substituent group, and a vinyl group that may have a substituent group, and Ar 1 is a phenylene group and Ar 2 is one of a phenylene group, a naphtyhlene group, a phenanthrene group and an anthrylene group in which Ar 2 has at least one substituent group selected from an alkyl group, an aryl group, a cyano group, a trifluoromethyl group and a halo group and when n is 1, Ar 1 and R 1 or/and Ar 2 and R 2 may join together to form a ring, provided that Gp1 is a divalent group and represents an arylene group that may contain a hetero atom, a vinylene group, a carbonyl group, an oxy group, an oxycarbonyl group, a thio group, a sulfinyl group, a sulfonyl group, an imino group, a urylene group, an amide group or a silylene group, Gp2 is a monovalent group and represents a hydro group, an alkyl group, an aryl group, a vinyl group that may contain a substituent group, an amino group, a mercapto group, a hydroxy group, a carbamoyl group, a sulfino group, a sulfo group, a carboxy group or a halo group, and Gp3 is a monovalent group and represents an N-hydroxysuccinimide ester group, a hydroxysulfosuccinimide ester group, an imide ester group, an isothiocyanate group, an isocyanate group, a maleimide group, a carboxyl group, an aldehyde group, a glyoxal group, an imido ester group, an oxirane group, a triazine group, a carbodiimide group, an aziridine group, a halogenated acyl group, a halogenated alkyl group, a halogenated sulfonyl group or a vinyl sulfone group.