This study examined a cohort of 935 police officers in a city in Zhejiang Province using the short-form Depression Anxiety Stress Scales (DASS-21), the Work-Family Support Scale, and the Psychological Capital Questionnaire. Latent profile analysis (LPA) was employed to identify distinct patterns of work-family support among participants. We further investigated the associations between latent classes of work-family support and negative emotions, and explored the potential mediating role of psychological capital in the relationship. The results revealed that 1) LPA identified six subgroups of perceived work-family support (Entropy = 0.89, LMR p = 0.05, BLRT p < 0.001): low support (5.03%), moderate support (20.43%), moderately high support (43.00%), work-dominant support (5.24%), family-dominant support (7.81%), and high support (18.50%). 2) Higher levels of work-family support were significantly associated with lower levels of negative emotions (depression, anxiety, and stress). 3) Using the low-support group as the reference, psychological capital significantly mediated the relationship between work-family support and negative emotions.

采用负性情绪量表(DASS-21)、工作–家庭支持量表和心理资本量表, 对浙江省某市935名民警进行调查。采用潜在剖面分析方法, 探索民警工作–家庭支持的潜在剖面特征, 并探讨工作–家庭支持类别与负性情绪的关系, 以及心理资本在其中的中介效应, 得到如下结果。1) 民警感知到的工作–家庭支持存在6类剖面(Entropy = 0.89, LMR p = 0.05, BLRT p < 0.001) ——低支持(5.03%)、中等支持(20.43%)、中高支持(43.00%)、工作主导支持(5.24%)、家庭主导支持(7.81%)和高支持(18.50%)。2) 随着工作–家庭支持水平升高, 民警抑郁、焦虑和压力等负性情绪水平显著降低。3) 以低支持类型作为参照组, 心理资本在民警工作–家庭支持与负性情绪之间起中介作用。