diff --git a/src/cmd/go/internal/imports/build.go b/src/cmd/go/internal/imports/build.go
index 53fa1967f742e..0f20a8786e17f 100644
--- a/src/cmd/go/internal/imports/build.go
+++ b/src/cmd/go/internal/imports/build.go
@@ -328,6 +328,7 @@ var KnownArch = map[string]bool{
 	"mips64le":    true,
 	"mips64p32":   true,
 	"mips64p32le": true,
+	"loong64":     true,
 	"ppc":         true,
 	"riscv":       true,
 	"riscv64":     true,
diff --git a/src/cmd/go/internal/work/exec.go b/src/cmd/go/internal/work/exec.go
index 0b8e5d2330e1e..7c71d7e6e4a16 100644
--- a/src/cmd/go/internal/work/exec.go
+++ b/src/cmd/go/internal/work/exec.go
@@ -2654,6 +2654,8 @@ func (b *Builder) gccArchArgs() []string {
 		} else if cfg.GOMIPS == "softfloat" {
 			return append(args, "-msoft-float")
 		}
+	case "loong64":
+		return []string{"-mabi=lp64d"}
 	case "ppc64":
 		if cfg.Goos == "aix" {
 			return []string{"-maix64"}