Electron withdrawing group-containing monomer of the present invention has the following formula (a), (b) or (c)

^{(Wherein, A 1, A 2, A} 3 represents a ^ring, R ^a, R ^b, R c, ^{R u} are the same or different, ^.R s represents a hydrogen atom or an organic group, ^{R w} and R ^v At least one of the at least one of ^{R t} and ^{R w1,} at least one of two ^{R w2} are each an electron-withdrawing group, .W ¹ remainder represents a hydrogen atom or an organic group is a single indicates bond or a linking group, n represents ^.R a represents an integer of ^{2~25, R b, R c,} R s, R t, R u, R v, R w, R w1, R w2, W 1, carbon atoms constituting the a ¹ ring, the carbon atoms constituting the a ² ring carbon atoms constituting the a ³ ring is represented by 2 or more, each may be combined with each other to form a ring). Wherein ^{R s, R t, R v} , an electron withdrawing group in ^{R w, R} w1, ^{R w2} is, for example, fluorine atom-containing group. This monomer is useful as a raw material for photoresist polymeric compound.