Introduction: Intraosseous vascular access is considered a quick, safe, and effective option in situations in which it is not possible to achieve venous access in a pre-established time, such as in severe shock or cardiorespiratory arrest. In these situations, it is difficult to place conventional vascular accesses, which is why it is extremely important to acquire knowledge related to the placement of intraosseous accesses. Materials and methods: Descriptive and cross-sectional study. Surveys of health personnel and professionals in training on knowledge of intraosseous vascular access and its use in emergencies AND emergencies. Results: Four hundred and forty-four surveys were conducted. Doctors with training 37 (8.3%) resident doctors 23 (5.1%), students of medicine 206 (46.39%), nurses 92 (20.72%), and nursing students 86 (19.36%). The range eta-Rio was 21–59 years old. 27.03% (120) know the intraosseous route as vascular access; 25% (111) have received some type of training on the placement of intraosseous accesses, with the same number of professionals who were able to list the corresponding anatomical sites. Only 13.06% (58) were able to indicate precisely the anatomical repairs necessary for their placement and, finally, only 23, 42% (104) of the respondents knew if their place of performance had been set for the placement of said route. Conclusion: Few health professionals have knowledge related to the placement of intraosseous accesses since they are scarcely promoted during undergraduate training. Intraosseous vascular access is a highly usable alternative and its training can be implemented at different levels of training, with training on its indications, contraindications, complications, and method of the placement being essential. With adequate training, intraosseous vascular access can be used as a tool in the emergency services for the initial treatment of patients with difficulties in the placement of vascular accesses.