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Neoarchean granitic complex in Taili area of Xingcheng in western Liaoning��was an important part of Neoarchean granitic crust in North China craton��and divided into two types: the biotite-feldspar gneiss and granodioritic gneiss�� All granodioritic gneiss was“fuzzy”in gradual transition without general characteristic of intrusive body�� Granodioritic gneiss and biotite-feldspar gneiss mixed with eath other��indicating coordinated deformation or transitional relationship�� Micro fabric research showed that the two types of gneiss can be divided into two different types of structural phase for each: native structure phase and neonatal structure phase�� The content of neonatal structure phase was increasing and the native structure phase was decreasing gradually from biotite-feldspar gneiss to granodioritic gneiss�� In major elements��the two types of gneiss had linear distribution trend in SiO₂ with MnO�� CaO��TiO₂ ��Fe₂O₃ and MgO with similar characteristics in trace and rare earth elements�� The granodioritic gneiss belongs to anatectic granite in genesis��and their source rocks might be a metamorphosed greywacke��