Background: Serious or life-threatening pediatric emergencies are rare. Patient outcomes largely depend on excellent teamwork and require regular simulation-based team training. Recommendations for pediatric simulation-based education are scarce. We aimed to develop evidence-based guidelines to inform simulation educators and healthcare stakeholders. Methods: A modified three-round Delphi technique was used. The first guideline draft was formed through expert discussion and based on consensus (n= 10 Netzwerk Kindersimulation panelists). Delphi round 1 consisted of an individual and team revision of this version by the expert panelists. Delphi round 2 comprised an in-depth review by 12 external international expert reviewers and revision by the expert panel. Delphi round 3 involved a revisit of the guidelines by the external experts. Consensus was reached after three rounds. Results: The final 23-page document was translated into English and adopted as international guidelines by the Swiss Society of Pediatrics (SGP/SSP), the German Society for Neonatology and Pediatric Intensive Care (GNPI), and the Austrian Society of Pediatrics. Conclusions: Our work constitutes comprehensive up-to-date guidelines for simulation-based team trainings and debriefings. High-quality simulation training provides standardized learning conditions for trainees. These guidelines will have a sustainable impact on standardized high-quality simulation-based education.