As a writer, he is the author of five literary works and has even received an honorable mention for the "Contest of Tales João Pinheiro", from the Secretariat of Culture of Piauí.

Affiliated to the Workers’ Party of Brazil (PT) since the age of 23, Wellington Dias began his political career in 1992 when he was elected councilor of Teresina.

At the same time, he was also regional president of the PT between 1995 and 1997, and even ran for vice-mayor of the municipality Teresina in the Nazareno Fonteles ticket, but was unable to reach the second round.

[2] In the October 2000 elections, he was a candidate for the mayor of Teresina but was defeated in the first round with the reelection of Firmino da Silveira Soares Filho, of the Brazilian Social Democracy Party (PSDB).

[2] In 2006, Wellington Dias was a candidate for re-election to the State Government and managed to win the election even in the first round against his main opponent and former ally, the then senator Mão Santa.