本研究选取内蒙古呼伦贝尔莫力达瓦达斡尔族自治旗（简称莫旗）和新疆塔城市的健康达斡尔族成人629例（其中男性315例，女性314例）作为研究对象，对40项头面部指标进行调查，并计算5项头面部指数及其分型。用SPSS20.0统计软件和R软件对数据进行统计学处理。研究发现，内蒙古达斡尔族与新疆达斡尔族成人的头面部观特征存在显著性差异，新疆达斡尔族各指标均值多高于内蒙古达斡尔族。内蒙古达斡尔族成人具有头较长，头较宽，面较宽，鼻较狭，鼻较低的头面部特征。新疆达斡尔族成人具有头的长度、宽度中等，鼻狭，鼻低的头面部特征，这可能与地理环境及人群间的交流融合有关。本研究为探寻达斡尔族群间表型特征演变的原因和规律、探讨达斡尔族族源关系等提供了参考依据。

In this study, 629 healthy Daur adults (315 males and 314 females) from Molidavar Autonomous Banner (referred to as Moqi) of Hulunbuir, Inner Mongolia and Tacheng City of Xinjiang were selected as research objects. 40 head and face indexes were investigated, and 5 head and face indexes and their subtypes were calculated. The data were processed by SPSS20.0 statistical software and R software.Research has found that there is a significant difference in the head and facial features of adults between the Daur ethnic group in Inner Mongolia and the Daur ethnic group in Xinjiang. The average value of each index of Daur nationality in Xinjiang is higher than that of Daur nationality in Inner Mongolia. Inner Mongolia Daur adults have longer head, wider head, wider face, narrower nose and lower nose. The adults of Daur nationality in Xinjiang have the facial features of medium length and width of head, narrow nose and low nose，which may be related to the geographical environment and communication and integration between populations.This study provides a reference for exploring the reasons and rules of the evolution of phenotypic characteristics between Daur ethnic groups and exploring the origin relationship of Daur ethnic groups.