In Mexico beef cattle production under double purpose systems is the main economic activity in rural areas. This activity has been developed for decades in the south of México State, without any technical assistance. The productive chain of beef production has a weak links between the different bonds (producers, slaughter houses, traders etc.), which in general have been working independently. Organization between the bonds of the chain will increase the competitiveness of the system. Results of the study indicate that beef production chain in the south of Mexico State is a competitive and profitable, due to its low investment cost, but mainly because of its great flexibility, even though optimum productivity is not achieved. During 2008, sales utilities of calves were $ 8.80 per kg, which was higher than that obtained from the sales of steers ($ 5.60).