A light emitting device having an anode, a cathode, a first organic layer disposed between the anode and the cathode and a second organic layer disposed between the anode and the cathode, wherein said first organic layer is a layer containing (a) a host material having at least one function of hole injectability, hole transportability, electron injectability and electron transportability, and (b) a light emitting material represented by the formula, and not containing a phosphorescent metal complex, and said second organic layer is a layer containing a crosslinked body of a polymer compound containing a crosslink constitutional unit, characterised in that the first organic layer contains the light emitting material represented by the formula in a content of 0.1 to 20 parts by mass when the sum of the light emitting material represented by the formula and the host material is taken as 100 parts by mass: wherein, n T1 represents an integer of 0 or more and 5 or less, when a plurality of n T1 are present, they may be the same or different, n T2 represents an integer of 1 or more and 10 or less, Ar T1 is a single-ring or condensed-ring monovalent hetero ring group containing a nitrogen atom having no double bond as a ring constituent atom and not containing a nitrogen atom having a double bond as a ring constituent atom, and the group optionally has a substituent, when a plurality of such substituents are present, they may be combined together to form a ring together with atoms to which they are attached, when a plurality of Ar T1 are present, they may be the same or different, L T1 represents an alkylene group, a cycloalkylene group, an arylene group, a divalent hetero ring group, a group represented by -N(R T1') -, an oxygen atom or a sulfur atom, and these groups optionally have a substituent, R T1' represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent hetero ring group, and these groups optionally have a substituent, when a plurality of L T1 are present, they may be the same or different, Ar T2 is a single-ring or condensed-ring hetero ring group containing a nitrogen atom having a double bond as a ring constituent atom, and the group optionally has a substituent, and when a plurality of such substituents are present, they may be combined together to form a ring together with atoms to which they are attached. said first organic layer is a layer containing (a) a host material having at least one function of hole injectability, hole transportability, electron injectability and electron transportability, and (b) a light emitting material represented by the formula, (a) a host material having at least one function of hole injectability, hole transportability, electron injectability and electron transportability, and (b) a light emitting material represented by the formula, and not containing a phosphorescent metal complex, and said second organic layer is a layer containing a crosslinked body of a polymer compound containing a crosslink constitutional unit, characterised in that the first organic layer contains the light emitting material represented by the formula in a content of 0.1 to 20 parts by mass when the sum of the light emitting material represented by the formula and the host material is taken as 100 parts by mass: wherein, n T1 represents an integer of 0 or more and 5 or less, when a plurality of n T1 are present, they may be the same or different, n T2 represents an integer of 1 or more and 10 or less, Ar T1 is a single-ring or condensed-ring monovalent hetero ring group containing a nitrogen atom having no double bond as a ring constituent atom and not containing a nitrogen atom having a double bond as a ring constituent atom, and the group optionally has a substituent, when a plurality of such substituents are present, they may be combined together to form a ring together with atoms to which they are attached, when a plurality of Ar T1 are present, they may be the same or different, L T1 represents an alkylene group, a cycloalkylene group, an arylene group, a divalent hetero ring group, a group represented by -N(R T1') -, an oxygen atom or a sulfur atom, and these groups optionally have a substituent, R T1' represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent hetero ring group, and these groups optionally have a substituent, when a plurality of L T1 are present, they may be the same or different, Ar T2 is a single-ring or condensed-ring hetero ring group containing a nitrogen atom having a double bond as a ring constituent atom, and the group optionally has a substituent, and when a plurality of such substituents are present, they may be combined together to form a ring together with atoms to which they are attached.