It is responsible for selecting the country's representatives to the Miss Earth international pageant.
The main winner is being sent to Miss Earth which is an annual international beauty pageant promoting environmental awareness.
The Runner-up of Miss España or sometimes the 2nd Runner-up or Top 5 represents her country at Miss Earth.
In 2011, the official candidate will be selected by the Miss Tierra Spain pageant.
Starting in 2017, the Miss Earth Spain will be determined through one of the winners of the national pageant Showstars Spain headed by Julio Cesar Battaglia.