A mesomorphic polymer comprises recurring units of the following formula (I): ##STR1## wherein U denotes a polymer main chain unit; V denotes --(CH.sub.2).sub.m -- or --((CH.sub.2).sub.2 --O).sub.m -- each capable of having a substituent selected from alkyl group, halogen atom, amino group or carbonyl group substituting one or more of the hydrogen atoms wherein m is an integer of 0-30; W denotes a single bond, --O--, --OCO--, --COO--, CONR.sup.1 --, --CO-- or --NR.sup.1 -- wherein R.sup.1 denotes hydrogen atom or alkyl group; X denotes a mesogen unit comprising at least two rings selected from aromatic carbon rings, aromatic heterocyclic rings and alicyclic rings each capable of having a substituent and connected with a single bond, --O--, --OCO--, --COO--, --(CH.sub.2).sub.n --, --N.dbd.N--, --(CH.dbd.CH).sub.m --, --CH.dbd.N--, --N.dbd.CH--, --(C.ident.C).sub.n 13 , --CONR.sup.1, --(CO).sub.n -- or NR.sup.1 -- wherein R.sup.1 is the same as defined above and n is an integer of 1-10; Y denotes --COOCH.sub.2 --, --OCH.sub.2 -- or --OCO--; Z denotes --R.sup.2 or --COR.sup.2 wherein R.sup.2 denotes hydrogen atom or alkyl group capable of having a substituent; and * denotes the location of an asymmetric carbon atom.