The floriculture in Ecuador generates important sources of work and national development, so it was proposed as a general objective, to compare the flower exports of Ecuador versus Colombia in the period 2011 - 2015, considering the influence of the decision of the Ecuadorian government to eliminate the tariff preference of the ATPDEA in 2013, applying the deductive, quantitative, descriptive, documentary and field methodology, after applied the direct observation of the records of the state institutions (Central Bank of Ecuador and PROECUADOR), Observing the following results: Ecuadorian flower exports in 2011-2015 showed an irregular trend, increasing in 2012 and 2013, decreasing in 2014, increasing in 2015, showing a drop in 2014, a period after the ATPDEA rupture on the part of the Central government, recovering in 2015, while Colombian flower exports grew in 2012, 2013 and 2014 but declined in 2015, showing an increase in 2014 (the period after the ATPDEA rupture by the Ecuadorian government) and a drop in 2015, where Ecuadorian exports were recovered, is spite of it, a negative behavior in 2014 when compared to Colombia, corroborating the hypothesis, nevertheless, the country's evident recovery in flower exports, which was better than the decline in Colombia , said that the national government measure, only caused slight affectation to the floriculturist sector.