Structural behavior for five layers of the vegetation and tree community structure (DAP > 10cm), the classification and ordination of the floristic component and dynamic succession was evaluated in the high zone of a brook El Tigre, Norcasia Caldas, by eight hazard sampling of a 1000 m 2 each one. The results of the classification defined the alliance Ingo codonanthae - Vismion guianensis and the associations -Schefflero morototoni Schizolobietum parahybi and Cariniano piriformydis - Cordietum alliodorae. Moreover, meeting a community less development determine by Dendropanax arboreus - Euterpe precatoria. Three layers were difference with the tree lower layers more dominant. The specie obtained the larger IPF and IVI of the forest sinusie is facaranda copaia. Ocotea longifolia and Inga codonantha were dominant in the sociologic position. The IVIA was larger for Ocotea longifolia. The distributions in class to the forest sinusie define an inverse j. After of the ordination was definea a correlation between the hazards and the slope, arid a negative correlation between the slope and the basis saturation in the sames. The limited number of layers near to the dominion the ecological society heliofilos and hemisciofilos in the canopy and esciofilo in the low layers, determine an intermediate sucesional development of the vegetation.