It was created in the 1970s and was known first as the "Solomon Islands General Workers' Union", then the "Solomon Islands National Union of Workers", a name that is still in some use.
It was created in the 1970s by the "Solomon Islands General Workers' Union" and had membership of over 90% of SI TUs. After the independence of SI, in 1978 the name was changed to the "Solomon Islands National Union of Workers", a name that is still in some use.