Objectives: To assess the validity and describe the psychometric properties of the Spanish version of the Second Victim Experience and Support Tool (SVEST-E) questionnaire. Methods: Cross-sectional observational study aimed at midwives and obstetricians in Spain. An online survey was conducted consisting of two parts: the first part collected different variables and the second part collected the SVEST-E. The temporal stability of the instrument was evaluated using the test-retest method. For the construct validity and reliability, an exploratory factor analysis (EFA) and a confirmatory factor analysis (CFA) were performed using FACTOR programme v.10 with a polychoric correlation matrix. Results: A total of 689 professionals participated in the study, of which 323 were obstetrician physicians and 366 were midwives. The mean score on the SVEST-E for the total sample was 3.09 (SD = 0.50). The parallel analysis of the EFA suggested a 5factor solution, with a total explained variability of 61.8%. The goodness of fit indices of the model were RMSEA = 0.038 (95% CI: 0.031-0.042), NNFI = 0.985 (95% CI: 0.984-0.989) and CFI = 0.989 (95% CI: 0.988-0.992). The factor model obtained was confirmed by CFA, obtaining the values of RMSEA = 0.038 (95% CI: 0.026-0.053), NNFI = 0.985 (95% CI: 0.957-1.000) and CFI = 0.989 (95% CI: 0.969-1.000). The intraclass correlation coefficient for SVEST-E was 0.97 (95% CI: 0.94-0.99). Conclusions: The SVEST-E instrument maintains the same items as the original questionnaire but introduces changes in the organisation of its dimensions, containing 4 factors and the desired support responses. The Spanish version of the instrument maintains adequate content validity, construct validity, reliability, and temporal stability, so the SVEST-E is a valid tool to evaluate the second victim experience in Spanish