Many changes have been done to set up a National Universal Health System, in response to the challenge that warranties efficiently and with quality the right of protecting health of more than 117 million people in Mexico, in spite of its social or working status. Several objectives have been taken to get this achievement: 1. Reinforcement of the Secretaria de Salud as health authority. 2. A standard attention model to join the different subsystems. 3. Functional and efficient integration of institutions 4. Improvement of the available resources 5. Reinforcement of clearness and outstanding bills 6. Prompt and personalized attention no matters working status. Thus here we present the strategies and policies taken to achieve this challenge.