Currently, the Han and Uygur ethnicities in Xinjiang, China are generally in a peaceful state; however, there are also disagreements and conflicts. Through three studies, this article explores intergroup attributional bias (in‐group favoring and out‐group derogating pattern of attribution) between the Hans and Uygurs in Xinjiang, China, and the reducing effect of positive imagined intergroup contact on intergroup attributional bias. Using high school students from Han and Uygur as participants, Study 1 investigated participants’ attributional patterns for in‐group and out‐group members presenting desirable or undesirable behaviors in daily situations. The results revealed that both Hans and Uygurs demonstrate an in‐group favoring pattern of attribution, but not an out‐group derogating pattern. Study 2 added a brief positive imagined intergroup contact (experimental group) or a brief positive imagination of an outdoor scene (control group) before participants completed the same questionnaire as in Study 1 and found a weaker intergroup attributional bias in the experimental group. In Study 3, Han students who had a positive imagined contact with a Uygur demonstrated a closer distance and reported more positive attitudes toward Uygurs than Han students who had imagined contact with a nonspecific stranger. Studies 2 and 3 together indicated a reducing effect of imagined contact on intergroup attributional bias through improvement of intergroup attitudes. The conclusion of this research is particularly meaningful for the Hans and Uygurs, as it implies that properly implemented positive imagined intergroup contacts might be a useful remedy for reducing potential conflicts.