The　use　of　hydrogen　energy　is　considered　an　essential　research　direction　for　carbon　neutrality.　Hydrogen　Wankel　rotary　engines　(WREs)　are　of　increasing　interest　to　researchers　due　to　their　excellent　power　and　emissions　characteristics.　For　WREs,　the　intake　and　exhaust　phases　significantly　influence　performance　and　emissions.　This　study　focuses　on　the　implementation　of　a　one-dimensional　(1-D)　model　of　a　hydrogen　WRE,　and　studies　the　effects　of　intake　port　closing　(IPC)　timing　and　exhaust　port　opening　(EPO)　timing　on　the　performance　and　emissions.　The　1-D　model　is　implemented　in　the　AVL　BOOST　modeling　environment　and　verified　with　experimental　data　at　different　excess　air　ratios　(lambda).　The　effects　of　leakage　and　crevice　are　also　considered　in　the　modeling　process.　The　simulation　results　demonstrated　that　the　indicated　mean　effective　pressure　(IMEP)　decreased　by　approximately　14%　due　to　leakage　and　crevice　compared　with　the　ideal　model.　The　volumetric　efficiency　(VE)　reduction　caused　by　the　crevice　was　less　than　the　leakage　effect.　Meanwhile,　VE　improved　with　the　increasing　lambda　.　As　the　IPC　advanced,　the　gas　reflux　was　reduced,　which　increased　the　in-cylinder　mass　and　IMEP.　However,　the　relative　NOx　emissions　increased　due　to　the　higher　temperature.　The　variation　caused　by　EPO　timing　in　performance　and　emissions　was　reversed.　The　VE　first　increased　and　then　decreased　with　the　delayed　EPO　timing.　This　paper　provides　a　viable　solution　with　more　practical　guidance　for　optimizing　the　performance　and　emissions　of　hydrogen　WRE.