One day after joining the nation of Brazil on November 16, 1889, as well as in its initial years, the flag of the Clube Republicano Paraense appeared as the state flag. Written by Philadelpho de Oliveira Condurú, it was described as follows:
Bandeira partida em pala, de vermelho, branco, vermelho com uma estrela azul no centro.[4][5]
On April 10, 1890, the Municipal Council, on the proposal of its president, Artur Índio do Brasil, approved a project making the club's badge the flag of the municipality of Belém.
On June 3, 1890, a bill to make the flag official was presented by deputy Higino Amanajás in the State Chamber. Its content was as follows:
The Legislative Congress of the State of Pará decrees:
Art. 1 - The Flag of the State of Pará is considered to be the one that served as a badge for the Clube Republicano Paraense, before the proclamation of the Republic, and which in a session on April 10, 1890 was adopted as the Flag of the Municipality.
Art. 2 — Provisions to the contrary are renewed.
Ribeiro records that the project was never made official, being rejected in the senate, inspired by Governor Augusto Montenegro, on the grounds that all Brazilians should have the Brazilian flag as their only flag.[5]
The current design of the flag, which was used as a reference in the creation of the official coat of arms in 1903, is composed as follows: a red rectangle with an oblique white stripe, running from the top left corner to the bottom right corner, and a blue star in the center of the flag.