亡羊补牢 (Wang Yang Bu Lao): Meaning, Pinyin and Useful Examples
Revised · Chinese idiom meanings, stories and practice
亡羊补牢 (wáng yáng bǔ láo) means making a useful correction after a mistake or loss. Literally, it is repairing the sheep enclosure after sheep are lost. The point is that fixing the weakness can still matter; the idiom does not say the earlier loss will be recovered.
Read the four characters and their meaning
On a narrow screen, scroll this table sideways to read all columns.
| Form | Pinyin | Meaning here |
|---|---|---|
| 亡 | wáng | Lost; the sheep need not have died. |
| 羊 | yáng | Sheep. |
| 补 / 補 | bǔ | Mend or repair. |
| 牢 | láo | An animal enclosure in this image. |
The simplified form is 亡羊补牢; the traditional form is 亡羊補牢. The dictionary tones are second, second, third and second. In modern use, the enclosure becomes a weakness in a habit, procedure or decision. You do not need literal sheep.
Look for the mistake and the repair
A report was submitted without an attachment. The team changes its submission check after discovering the omission. That is a useful 亡羊补牢 context: something went wrong, the weakness was identified, and an action addresses it. A person who merely feels sorry has not supplied the repair.
The mistake may be discovered before it causes a major financial loss. Do not impose a money-loss threshold. The Ministry of Education dictionary defines the expression around correcting a mistake while remedy remains possible. Explain what was wrong and what changed.
“Better late than never” can fit an encouraging sentence. For a report about responsibility, “they corrected the weakness after the mistake” is often clearer. English “locking the stable door after the horse has bolted” can imply a pointless action; that implication would distort a Chinese sentence that values a useful late correction.
Keep useful examples; make their context visible
These are teaching sentences, not quotations or reports of actual events. The first three retain examples from the earlier entry. The notes explain their scope.
发现问题后马上改，还算亡羊补牢。
Fāxiàn wèntí hòu mǎshàng gǎi, hái suàn wáng yáng bǔ láo.
Correcting the problem as soon as it is found still counts as a useful remedy.
The context must supply the problem. In a standalone explanation, add it: an omitted attachment, an inaccurate list or an error in a record. “Problem” alone leaves the reader guessing.
这次考试没考好，现在复习也是亡羊补牢。
Zhè cì kǎoshì méi kǎo hǎo, xiànzài fùxí yě shì wáng yáng bǔ láo.
This exam went poorly, but reviewing now can still be worthwhile.
The review can improve future preparation; it does not change the mark already earned. A more specific version names the changed study method rather than promising improvement merely from starting again.
安全事故后，公司开始亡羊补牢。
Ānquán shìgù hòu, gōngsī kāishǐ wáng yáng bǔ láo.
After the safety incident, the company began addressing the underlying problems.
This sentence acknowledges delayed action. It does not prove the repairs are effective or the workplace is safe. In a real report, name the actual measures and evidence.
上次把日期写错后，我增加了核对步骤，算是亡羊补牢。
Shàng cì bǎ rìqī xiě cuò hòu, wǒ zēngjiā le héduì bùzhòu, suàn shì wáng yáng bǔ láo.
After writing the date incorrectly last time, I added a checking step as a corrective measure.
This new example supplies both halves. 还来得及, “there is still time,” can encourage action; 算是, “counts as,” offers a qualified assessment. Neither expression guarantees that a repair will work.
Correction and preparation need an event to compare
If your sentence looks back at the omission and values the new check, 亡羊补牢 fits. If it looks ahead to the next submission and emphasizes preparing against another error, 未雨绸缪 may fit. A past mistake does not permanently rule out preparation for a later event.
Use the correction-versus-preparation timing worksheet to practice that change of emphasis. This entry handles the meaning of one idiom; the worksheet gives paired timelines and ten choices.
Where the source connects the proverb
The MOE Dictionary of Chinese Idioms, 2020 Advanced entry 482, reproduces Zhanguo Ce, “Chu Strategies IV” (《战国策·楚策四》). Zhuang Xin uses the sheep-enclosure proverb when advising King Xiang of Chu after political losses. The familiar farmer-and-neighbor classroom tale is a teaching retelling, not every detail of that reproduced passage.
Read the separate story page for the source context and a labeled classroom version. The consulted online reproduction establishes the connection discussed here; it is not a comparison of every classical edition or an earliest-use investigation.
亡羊补牢: identify the useful correction
Examples to work through
These teaching checks explain a choice about meaning, wording or the story source.
A forgotten attachment
An omission exposes a weak submission check. Adding a check after that mistake can be described as 亡羊补牢. Identify the changed step; a statement of regret alone is insufficient.
A better result is not yet known
A student changes an ineffective study routine after a disappointing exam. The idiom can encourage that correction even before a later score exists. Do not promise the new routine will erase the old mark.
An ordinary early task
Someone finishes a novel early, with no mistake or risk stated. That fact alone establishes neither 亡羊补牢 nor advance precautions. Describe the action plainly.
One check, two time references
“After last time’s error” highlights correction. “Before the next submission” can highlight precautions. Explain the event and purpose rather than deciding from the word checklist.
A mistake-and-correction sentence record
Use these optional reminders to mark fields you want to keep in your own notes. The downloadable blank sheet contains every record field. Keep your completed record in your own appropriate private place.
Frequently asked questions
Does 亡羊补牢 mean the earlier loss will be recovered?
No. It values timely correction that can reduce later repetition. Compensation for a past loss is a separate claim.
Must sheep have died in the literal meaning?
No. 亡 means lost in this image, and 牢 is the enclosure. Do not add death or a modern prison to the definition.
Can it sound critical?
Yes. It can acknowledge delayed action while encouraging repair. Explain the mistake and correction when commenting on someone else’s work.
Is regret by itself enough?
No. The repair is essential to the comparison. Say what action addresses the weakness, or describe the regret without this idiom.
Sources and what they support
- MOE Dictionary of Chinese Idioms: 亡羊補牢
The 2020 Advanced entry reproduces Chu Strategies IV, including the proverb spoken by Zhuang Xin to King Xiang. Its definition and examples value timely correction; one example expressly distinguishes remedy from compensation for earlier loss.
- MOE Dictionary of Chinese Idioms: 未雨綢繆
The 2020 Advanced entry supplies the advance-preparation meaning and the Shijing, Bin Feng: Chi Xiao image. The poem also mentions an earlier loss; preparation concerns the relevant later event rather than a life with no previous trouble.
Source entries checked on 4 November 2026 UTC. Modern examples, English renderings, reading schematics and blank records are original learning aids. The consulted dictionary reproductions do not establish a complete classical-book reading, an all-editions comparison or an exhaustive earliest-use study.