The Spanish Constitution of 1876 enshrined Spain as a constitutional monarchy, awarding the monarch the right of legislative initiative together with the bicameral Cortes; the capacity to veto laws passed by the legislative body; the power to appoint senators and government ministers; as well as the title of commander-in-chief of the army and navy.

The monarch would play a key role in the system of el turno pacífico (English: the Peaceful Turn) by appointing and dismissing governments and allowing the opposition to take power.

The Congress was entitled to one member per each 50,000 inhabitants, with each multi-member constituency being allocated a fixed number of seats: 8 for Madrid, 5 for Barcelona and Palma, 4 for Seville and 3 for Alicante, Almería, Badajoz, Burgos, Cádiz, Cartagena, Córdoba, Granada, Jaén, Jerez de la Frontera, La Coruña, Lugo, Málaga, Murcia, Oviedo, Pamplona, Santa Cruz de Tenerife, Santander, Tarragona, Valencia, Valladolid and Zaragoza.

The provinces of Álava, Albacete, Ávila, Biscay, the Canary Islands, Cuenca, Guadalajara, Guipúzcoa, Huelva, Logroño, Matanzas, Palencia, Pinar del Río, Puerto Príncipe, Santa Clara, Santander, Santiago de Cuba, Segovia, Soria, Teruel and Valladolid were allocated two seats each, whereas each of the remaining provinces was allocated three seats, for a total of 147.

The remaining 33 were allocated to a number of institutions, electing one seat each—the Archdioceses of Burgos, Granada, Santiago de Compostela, Santiago de Cuba, Seville, Tarragona, Toledo, Valencia, Valladolid and Zaragoza; the Royal Spanish Academy; the Royal Academies of History, Fine Arts, Sciences, Moral and Political Sciences and Medicine; the Universities of Madrid, Barcelona, Granada, Havana, Oviedo, Salamanca, Santiago, Seville, Valencia, Valladolid and Zaragoza; and the Economic Societies of Friends of the Country from Madrid, Barcelona, Cuba–Puerto Rico, León, Seville and Valencia.