The object of the present invention is to provide a liquid crystalline polyester resin composition for connectors that is excellent in fluidity at the time of molding and is therefore capable of producing connectors with further suppressed degree of warpage. The object is achieved by providing a liquid crystalline polyester resin composition for connectors comprising 100 parts by weight of a liquid crystalline polyester resin mixture which comprises 100 parts by weight of a liquid crystalline polyester (A) having a flow beginning temperature of from 300 DEG C to 400 DEG C and from 10 to 150 parts by weight of a liquid crystalline polyester resin (B) having a flow beginning temperatures of 260 DEG C to 350 DEG C and the difference between the flow beginning temperature of the liquid crystalline polyester resin (A) and the flow beginning temperature of the liquid crystalline polyester resin (B) is from 20 DEG C to 60 DEG C, and from 15 to 180 parts by weight of a fibrous and/or plate-shaped inorganic filler; wherein both of the liquid crystalline polyester resin (A) and the liquid crystalline polyester resin (B) are produced by ester exchange reaction between at least one selected from a group consisting of aromatic dicarboxylic acids and aromatic hydroxycarboxylic acids, and an acylated compound obtained by acylation of phenolic hydroxyl group of at least one selected from a group consisting of aromatic diols and aromatic hydroxycarboxylic acids with a fatty acid anhydride, and at least one of the acylation and the ester exchange reaction is carried out in the presence of a heterocyclic organic basic compound having two or more nitrogen atoms.