Semiconductor-based　nanomaterials　and　their　composites　have　received　significant　attention　for　solving　the　current　global　issues　about　energy　crises,　health,　and　environmental　pollution.　In　this　regard,　boron　nitride　(BN),　a　versatile　wide　band　gap　semiconductor　nanomaterial,　can　be　a　beneficial　candidate　due　to　its　mechanical　strength,　chemical　stability,　better　resistance　to　oxidation,　electrical　insulation,　and　thermal　conductivity.　Recently,　noteworthy　progress　has　been　made　in　the　area　of　BN-based　composites.　Primarily,　they　can　be　divided　into　ceramic　and　polymer　nanocomposites　based　on　the　matrix　used.　In　this　work,　we　have　summarized　the　various　synthesis　routes　of　BN　and　BN-based　nanocomposite　materials.　Such　composites　have　a　wide　range　of　applications　in　photocatalysis,　pollutant　degradation,　photovoltaics,　drug　delivery,　and　sensors.　In　addition,　the　prospects　for　semiconductor/BN　composites,　including　difficulties　in　its　large-scale　manufacturing　of　composite　materials,　are　discussed.　This　review　is　likely　to　aid　in　the　development　of　highly　effective　BN-based　materials.