Solid-state　metal　additive　manufacturing　technology　leads　to　efficient　and　rapid　production　of　large,　complex　metal　components.　Friction　Rolling　Additive　Manufacturing　(FRAM)　has　successfully　overcome　the　limitations　of　the　width　of　formed　parts　and　facilitates　the　manufacture　high-performance　large　metal　components.　However,　research　on　deposition　strategies　for　thick-section-formed　parts　is　yet　to　be　conducted.　This　study　reports　the　successful　fabrication　of　multilayer　multi-pass　samples　with　different　overlap　percentages　(OPs)　(0　%,　12.5　%,　25　%,　37.5　%,　50　%,　62.5　%,　and　75　%)　and　the　effects　of　OP　on　sample　morphology,　microstructure,　and　mechanical　properties.　The　results　indicate　that　with　gradually　increasing　OP,　the　effective　deposition　width　narrows,　mixing　degree　of　plasticized　material　in　overlap　zone　(OZ)　improves,　and　forming　morphology　of　samples　progressively　deteriorates.　The　height　of　OZ　increases　from　0.7　mm　to　2.4　mm,　with　a　maximum　height　difference　of　approximately　0.85　mm　between　the　OZs　and　non-OZs.　The　height　and　slope　of　the　grooves　at　the　edges　of　the　OZ　gradually　decrease.　Simultaneously,　the　as-deposited　(AD)　25　%　OZ　was　observed　to　have　small　and　uniform　grains　with　sizes　of　about　5.82-7.44　mu　m.　The　grain　size　and　LAGBs　of　the　post-deposited　heattreated　(PDHT)　OZ　center　increased　to　8.4　mu　m　and　52　%,　respectively.　The　mechanical　properties　of　the　AD　and　the　PDHT　of　the　25　%　overlap　sample　were　optimal.　The　maximum　tensile　strength　and　elongation　of　the　PDHT25　%　overlap　sample　in　the　Y-　and　Z-direction　were　265　MPa,　15.8　%,　and　242.3　MPa,　14.8　%,　respectively.　Thus,　25　%　OP　(OZ　width　of　3　mm)　effectively　balances　the　morphology,　efficiency,　and　performance　of　the　sample,　providing　an　optimal　multilayer,　multi-pass　deposition　strategy　for　the　future　deposition　of　thick　sections　of　large,　complex　metal　components　using　FRAM.