Self-care is a cornerstone issue for those who deal with stressful events, as it is the case of palliative care professionals. It has been related to awareness, coping with death and quality of life, among others, but no measurement instruments have been used in palliative care professionals. This research presents and validates a brief new measure with clinical and psychometric good properties, called Professional Self-Care Scale (PSCS). The PSCS assesses professionals’ self-care in three areas: physical self-care, inner self-care, and social self-care. Data come from a cross-sectional survey in a sample of 385 professionals of palliative care. The Mindful Attention Awareness Scale, the Coping with Death Scale, and the Professional’s Quality of Life measure were also used. Results of the CFA showed adequate fit (χ2(24, N = 385) = 140.66, p < .01; CFI = .91; GFI = .93; SRMR = .09; and RMSEA = .10). Evidence pointed better reliability indices for the 3-item physical and inner factors of self-care than for the social dimension (Rho and GLB of .64, .90, and .57, respectively). Evidence regarding validity was consistent with previous literature. When levels of self-care were examined, women showed higher levels of inner and social self-care (F(3, 371) = 3.19, p = .02, η2 = .03, as also did psychologists when compared to doctors and nurses (F(9, 1074) = 2.00, p = .04, η2 = .02. The PSCS has shown adequate psychometric properties, and thus it could be used as diagnostic instrument when studying professionals’ health.