A resin composition comprising: a resin containing a structural unit (A) represented by General formula below; and a resin containing a structural unit (B) represented by General formula below and/or a structural unit (C) represented by General formula below: in General formula , R 1 represents a hydrogen atom, a methyl group or an ethyl group, R 2 and R 3 each independently represent a hydrogen atom or a methyl group, and n represents 0 or 1; in General formula , R a and R b are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a C1-C20 alkyl group, a C1-C20 alkoxyl group, a C5-C20 cycloalkyl group, a C5-C20 cycloalkoxyl group, a C6-C20 aryl group, a C6-C20 heteroaryl group or a C6-C20 aryloxy group containing one or more heteroatoms selected from O, N and S, and -C≡C-R h , R h represents a C6-C20 aryl group or a C6-C20 heteroaryl group containing one or more heteroatoms selected from O, N and S, X represents a single bond or a fluorene group, A and B each independently represent a C1-C4 alkylene group, m and n each independently represent an integer from 0 to 6, and a and b each independently represent an integer from 0 to 10; in General formula , R c and R d are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a C1-C20 alkyl group, a C1-C20 alkoxyl group, a C5-C20 cycloalkyl group, a C5-C20 cycloalkoxyl group, and a C6-C20 aryl group, Y represents a fluorene group, A and B each independently represent a C1-C4 alkylene group, p and q each independently represent an integer from 0 to 4, and a and b each independently represent an integer from 0 to 10. a resin containing a structural unit (A) represented by General formula below; and a resin containing a structural unit (B) represented by General formula below and/or a structural unit (C) represented by General formula below: in General formula , R 1 represents a hydrogen atom, a methyl group or an ethyl group, R 2 and R 3 each independently represent a hydrogen atom or a methyl group, and n represents 0 or 1; in General formula , R a and R b are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a C1-C20 alkyl group, a C1-C20 alkoxyl group, a C5-C20 cycloalkyl group, a C5-C20 cycloalkoxyl group, a C6-C20 aryl group, a C6-C20 heteroaryl group or a C6-C20 aryloxy group containing one or more heteroatoms selected from O, N and S, and -C≡C-R h , R h represents a C6-C20 aryl group or a C6-C20 heteroaryl group containing one or more heteroatoms selected from O, N and S, X represents a single bond or a fluorene group, A and B each independently represent a C1-C4 alkylene group, m and n each independently represent an integer from 0 to 6, and a and b each independently represent an integer from 0 to 10; in General formula , R c and R d are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a C1-C20 alkyl group, a C1-C20 alkoxyl group, a C5-C20 cycloalkyl group, a C5-C20 cycloalkoxyl group, and a C6-C20 aryl group, Y represents a fluorene group, A and B each independently represent a C1-C4 alkylene group, p and q each independently represent an integer from 0 to 4, and a and b each independently represent an integer from 0 to 10. <EOS>