刻舟求剑的意思是指在剑落水的船帮上刻上记号，船停后，从刻记号的地方下水去找。比喻不会随着事物的变化来进步性的看待事物，仍然用旧的、不变的眼光看待事物。出自《吕氏春秋·察今》。
Engraving the boat for the sword means to engrave a mark on the boat gang where the sword fell into the water. After the boat stops, go into the water from the place where the mark is engraved. Metaphor does not look at things progressively as things change, but still looks at things with the old and unchanging eyes. From “Lu Shichunqiu·Chajin”.
刻舟求剑的成语故事：
有一个楚国人出门远行。他在乘船过江的时候，一不小心，把随身带着的剑落到江中的急流里去了。船上的人都大叫：“剑掉进水里了!”
这个楚国人马上用一把小刀在船舷上刻了个记号，然后回头对大家说：“这是我的剑掉下去的地方。”
众人疑惑不解地望着那个刀刻的印记。有人催促他说：“快下水去找剑呀!”
楚国人说：“慌什么，我有记号呢。”
船继续前行，又有人催他说：“再不下去找剑，这船越走越远，当心找不回来了。”
楚国人依旧自信地说：“不用急，不用急，记号刻在那儿呢。”
直至船行到岸边停下后，这个楚国人才顺着他刻有记号的地方下水去找剑。可是，他怎么能找得到呢。船上刻的那个记号是表示这个楚国人的剑落水瞬间在江水中所处的位置。掉进江里的剑是不会随着船行走的，而船和船舷上的记号却在不停地前进。等到船行至岸边，船舷上的记号与水中剑的位置早已风马牛不相及了。这个楚国人用上述办法去找他的剑，不是太糊涂了吗？
他在岸边船下的水中，白费了好大一阵工夫，结果毫无所获，还招来了众人的讥笑。
这则寓言成语故事告诉我们，用静止的眼光去看待不断发展变化的事物，必然要犯脱离实际的主观唯心主义错误。
刻舟求剑就是从这个故事来的。 舟是船 ， 求是寻找 。有的人办事不管时间地点的变化，始终不肯改变原来的主意，我们就可以说他是刻舟求剑。
The idiom story of carving a boat seeking a sword:
There was a Chu countryman who went on a long journey. When he was crossing the river by boat, he accidentally dropped the sword he was carrying with him into the rapids of the river. Everyone on the boat shouted: “The sword fell into the water!”
The Chu countryman immediately carved a mark on the side of the ship with a knife, and then turned around and said to everyone, “This is where my sword fell.”
Everyone looked at the imprint of the knife in a puzzled manner. Someone urged him: “Go into the water and find the sword!”
Chu people said: “What are you worried about, I have a mark.”
The boat continued to move forward, and someone urged him to say: “If you don’t go down to find the sword, the boat will go farther and farther. Be careful not to get it back.”
Chu people still confidently said: “Don’t worry, don’t worry, the mark is engraved there.”
After the boat stopped on the shore, the Chu countryman went into the water to find the sword along the marked place. But how could he find it. The mark engraved on the boat indicates the position of the Chu man’s sword in the river at the moment it fell into the water. The sword that fell into the river would not walk with the ship, but the ship and the marks on the ship’s gun kept advancing. When the boat reaches the shore, the marks on the ship’s gunwale and the position of the sword in the water are no longer relevant. Isn’t this Chu countryman too confused to find his sword using the above methods?
He spent a lot of time in the water under the boat on the shore, but he didn’t get any results, and he also drew ridicule from everyone.
This fable idiom story tells us that looking at things that are constantly evolving and changing with a static eye is bound to make the mistake of subjective idealism that is divorced from reality.
Ke Zhou Qiu Jian comes from this story. A boat is a boat, seek truth and seek. Some people do things regardless of changes in time and place, and still refuse to change their original ideas. We can say that he is asking for a sword.