ULF was founded on October 3, 2002, with the aim of mobilizing against the autocratic rule in the country.
The founding constituents of ULF were: CPN(MLM) and NSP(Malema) later merged to form the Communist Party of Nepal (Marxist-Leninist-Maoist Centre).
When the interim parliament was formed in January 2007, ULF got to nominate three MPs, C.P.
CPN(UM) was split as Ganesh Shah set up a separate Communist Party of Nepal (United).
In September 2007 CPN(MLM Centre) merged into Communist Party of Nepal (Maoist).