Spain took part in the Eurovision Song Contest 2010 held in Oslo, Norway. The national broadcaster Radiotelevisión Española (RTVE) selected the Spanish entry through a national selection process. Firstly by an online competition, ¡Tu país te necesita! (Your country needs you!), similar to the selection methods used in 2008 and 2009, which selected 10 acts to participate in the final of the selection process, Destino Oslo, La Gala de Eurovisión 2010, held on 22 February. The winner of the final was Daniel Diges with the song "Algo pequeñito".

In November 2009 Spanish national broadcaster RTVE announced its plans for the 2010 Eurovision Song Contest, which would be held in May 2010 in Oslo, Norway. The national campaign, ¡Tu país te necesita!, was launched by RTVE. As in the 2008 and 2009 Spanish selection processes the internet played a vital role in the selection, with all submitted entries placed on RTVE's website and voted upon for over two weeks. The ten most voted candidates proceeded to the televised final. Each voter was required to have a valid email address, and was able to vote only five times per day. RTVE reserved the right to subtract votes if it believed that fraudulent votes were being made by computer programs or scripts. TVE insiders stated that the participation of joke entries, such as those found in previous contests like "Baila el Chiki Chiki", the winner of the 2008 Spanish national contest, would be avoided.

Submissions for the internet voting began on 4 December, and continued until 12 January 2010. A total of 480 songs were submitted to RTVE for the contest, of which 313 progressed to the online voting.

During the voting period, from 18 January to 5 February, 5,722,596 votes were registered, about 100,000 more votes than in 2009.

On 21 January RTVE disqualified four songs from the online vote that were deemed to be breaking the rules of the competition. These included Pop Star Queen, who led the voting at the time of elimination; Chimo Bayo, who was in third place; Kejío; and Juan Losada. On 2 February four further songs were disqualified: El Pezón Rojo, who were leading the online voting and were disqualified after it was revealed their song had been released in a podcast in 2008, along with Kito & Rafa, Rose Avalon and Sonia Monroy.

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