In　this　study,　an　analytical　solution　for　the　stress　and　displacement　field　for　arbitrarily　positioned　twin-tunnel　excavation　at　great　depth　is　proposed.　The　twin-tunnel　is　subjected　to　equivalent　loads　on　the　tunnel　periphery　and　uniform　loads　at　infinity.　The　analytical　continuation　of　the　complex　variable　method　is　used　for　stress　＂stair＂,　owing　to　the　equivalent　loads　of　the　tunnel　support.　Subsequently,　the　Schwarz　alternating　method　and　Cauchy　integral　formula　are　used.　The　redundant　surface　forces　on　the　periphery　are　expanded　into　Laurent　series　in　the　sequence　of　iterations,　and　a　reasonable　series　truncation　is　adopted.　Comparing　with　several　existing　solutions　covering　special　cases　from　different　perspectives,　it　is　found　that　the　proposed　solution　meets　accuracy　requirements　for　tunnel　center　distance　greater　than　2.2　times　tunnel　radius　after　1.5　iterations.　The　proposed　solution　is　fast　and　yields　reference　value　to　tunnel　engineering.