diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53562081e00..8d7fc9e0607 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- macOS/IME input: when marked text is active, treat Return as IME candidate confirmation first in both the voice overlay composer and shared chat composer to prevent accidental sends while composing CJK text. (#25178) Thanks @bottotl.
 - macOS/Voice wake routing: default forwarded voice-wake transcripts to the `webchat` channel (instead of ambiguous `last` routing) so local voice prompts stay pinned to the control chat surface unless explicitly overridden. (#25440) Thanks @chilu18.
 - macOS/Gateway launch: prefer an available `openclaw` binary before pnpm/node runtime fallback when resolving local gateway commands, so local startup no longer fails on hosts with broken runtime discovery. (#25512) Thanks @chilu18.
 - macOS/Voice input: guard all audio-input startup paths against missing default microphones (Voice Wake, Talk Mode, Push-to-Talk, mic-level monitor, tester) to avoid launch/runtime crashes on mic-less Macs and fail gracefully until input becomes available. (#25817) Thanks @sfo2001.
diff --git a/apps/macos/Sources/OpenClaw/VoiceWakeOverlayTextViews.swift b/apps/macos/Sources/OpenClaw/VoiceWakeOverlayTextViews.swift
index 8e88c86d45d..bbbed72926b 100644
--- a/apps/macos/Sources/OpenClaw/VoiceWakeOverlayTextViews.swift
+++ b/apps/macos/Sources/OpenClaw/VoiceWakeOverlayTextViews.swift
@@ -185,6 +185,11 @@ private final class TranscriptNSTextView: NSTextView {
             self.onEscape?()
             return
         }
+        // Keep IME candidate confirmation behavior: Return should commit marked text first.
+        if isReturn, self.hasMarkedText() {
+            super.keyDown(with: event)
+            return
+        }
         if isReturn, event.modifierFlags.contains(.command) {
             self.onSend?()
             return
diff --git a/apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatComposer.swift b/apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatComposer.swift
index 145e17f3b7b..62714838177 100644
--- a/apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatComposer.swift
+++ b/apps/shared/OpenClawKit/Sources/OpenClawChatUI/ChatComposer.swift
@@ -486,6 +486,10 @@ private final class ChatComposerNSTextView: NSTextView {
     override func keyDown(with event: NSEvent) {
         let isReturn = event.keyCode == 36
         if isReturn {
+            if self.hasMarkedText() {
+                super.keyDown(with: event)
+                return
+            }
             if event.modifierFlags.contains(.shift) {
                 super.insertNewline(nil)
                 return