He was a member of the Republican Left in Catalonia, and served in the Second Spanish Republic as Minister of Labor, Health and Social Assurance.

[2] Lluhí was a founding member of Esquerra Republicana de Catalunya (ERC, Republican Left of Catalonia).

Lluhí was convicted for his participation in the events of October 1934 and on 6 June 1935 was disqualified from the legislature and sentenced to 30 years imprisonment.

[citation needed] Lluhí became Minister of Labor, Health and Social Assurance in the government of Santiago Casares Quiroga on 13 May 1936.

[4] Catalonia had recently calmed down, and the appointment of Lluhí to the cabinet was expected to help reduce tensions in Spain as a whole.

[7] In the ephemeral 19 July 1936 government of Diego Martínez Barrio, formed just after the civil war broke out, Lluhí was Minister of Communications and Merchant Marine for a few hours.

[4] In the government of José Giral he was again Minister of Labor, Health and Social Assurance from 19 July 1936 to 4 September 1936.