Preheating　and　water-cooling-assisted　friction　rolling　additive　manufacturing　(PC-FRAM)　enhances　the　fabrication　of　2195　Al-Li　alloys　by　improving　deposition　efficiency　through　preheating　while　actively　mitigating　heat　accumulation　during　additive　manufacturing.　This　study　aims　to　elucidate　the　evolution　of　precipitated　particles　in　2195　Al-Li　alloy　samples　subjected　to　different　aging　strategies　(single　and　double)　and　temperatures　using　PCFRAM.　The　morphology,　size,　and　distribution　of　the　precipitated　phases　at　the　atomic　scale　during　the　underaging,　peak-aging,　and　over-aging　stages　were　analyzed　using　transmission　electron　microscopy.　The　results　indicate　that　increasing　aging　time　and　temperature　accelerates　aging　kinetics,　thereby　promoting　the　precipitation　of　larger　T1　phases　while　reducing　their　number　density.　A　high-density,　fine-scale　T1　phase　with　a　width　of　3-4　nm　and　a　length　of　approximately　200　nm　was　precipitated　in　the　matrix　during　the　peak-aging　stage　when　single　aging　was　conducted　at　170　degrees　C　for　8　h,　significantly　enhancing　strength.　The　coarsening　of　the　T1　phase　during　aging　primarily　occurred　in　two　directions:　along　the　diameter　and　thickness.　Notably,　the　coarsening　rate　exhibited　high　sensitivity　to　aging　temperature.　The　over-aging　stage　was　reached　when　the　final　aging　process　was　conducted　at　190　degrees　C　for　4　h.　The　fine-scale,　high-density　precipitates　formed　during　the　peakaging　stage　substantially　improved　the　ultimate　tensile　strength　and　yield　strength　of　2195　Al-Li　alloys,　increasing　them　from　351　f　15.6　MPa　and　251.3　f　15.8　MPa　to　471　f　3.27　MPa　and　442　f　6.21　MPa,　respectively.　This　study　provides　theoretical　guidance　on　heat　treatment　methods　for　additively　manufactured　Al-Li　alloys　using　FRAM.