Turbulent　jet　ignition　(TJI)　effectively　achieves　lean　and　stable　combustion　in　hydrogen　engines.　However,　research　on　injection　strategies　for　TJI　hydrogen　engines　is　still　lacking.　In　this　study,　experimental　methods　investigated　the　effects　of　single　and　split　injection　strategies　on　the　combustion　and　emissions　of　TJI　hydrogen　engines　under　medium　loads.　The　numerical　simulation　reveals　the　operational　characteristics　of　fuel　distribution,　ignition　capability,　and　energy　conversion　in　the　pre-chamber　at　different　injection　times　in　a　single　injection　strategy.　This　work　is　conducted　at　1600　rpm　with　a　manifold　absolute　pressure　of　70　kPa.　The　experimental　results　indicate　that　the　delay　of　the　start　of　injection　(SOI)　can　enhance　the　performance　of　the　TJI　hydrogen　engine.　However,　as　SOI　approaches　TDC,　emissions　worsen,　and　combustion　stability　decreases.　When　SOI　is　90　degrees　CA　BTDC,　the　brake　mean　effective　pressure　(BMEP)　and　brake　thermal　efficiency　(BTE)　can　achieve　3.1　bar　and　32.9%,　with　the　coefficient　of　variation　of　the　IMEP　(COVIMEP)　of　1.6%　and　lower　emissions.　For　the　split　injection　strategy,　delaying　the　secondary　end　of　injection　(SEOI)　can　increase　BMEP　and　BTE.　As　SEOI　gradually　delays　the　TDC,　emissions　deteriorate　sharply.　Under　the　split　injection　strategy,　COVIMEP　is　higher,　which　is　unfavorable　for　hydrogen　engine　applications.