本文从荣格原型理论的角度出发,通过运用人格面具和阴影理论,分析《越过种族线》中浅肤色黑白混血儿艾琳的生存状态,指出人格面具的膨胀和阴影投射所引起的冲突是主人公艾琳复杂而又充满悲剧色彩的性格特征的根源,揭示黑白混血儿在种族文化环境中实现自身自性化历程的艰辛。 In this paper, from the perspective of Jung’s prototype theory, through the use of personality masks and shadow theory, the author analyzes the living conditions of the light-skinned mulatto Erin in “Crossing the Race Line” and points out that the conflict caused by the expansion of the personality mask and shadow projection is the result of protagonist Ai Lin’s complex but tragic character traits reveal the hardship of mulatto’s self-actualization in a racial and cultural environment.