The Solomon Islands is a constitutional monarchy with a unitary state structure and a parliamentary form of government.
The 50-member unicameral parliament is directly elected at least every five years in single-member constituencies via single-round, choose-one plurality voting, aka first-preference plurality (FPP) or first-past-the-post (FPTP).
This is the description of the electoral system of the Solomon Islands as of 03.10.2026 on Electoral Knowledgebase. Sources and further information on this topic: