PURPOSE:To obtain a composition suitable for electrical and electronic parts, etc., having high weld strength and small mechanical anisotropy by blending a liquid crystal polyester comprising specific structural units with specific amounts of a filler and an oxazoline compound. CONSTITUTION:(A) 100 pts.wt. anisotropic melt-forming liquid crystal polyester comprising structural units shown by formula I to formula IV (X is group shown by formula V, etc.; Y is group shown by formula VI, etc.), having 75-95mol% structural units I+II based on structural units I+II+III, 25-5mol% structural unit III based on structural units I+II+III and a molar ratio of structural unit I/II of 75/25 to 95/5 is blended with (B) 1-200 pts.wt. filler (e.g. glass fibers) and (C) 0.01-20 pts.wt., preferably 0.1-10 pts.wt. compound (e.g. 1,3-phenylene-2- oxazoline) shown by formula VII (Z is group shown by formula VI).