New Trip Editorial Department　Updated: July 29, 2026

Summary of prohibited items in suitcases | Explanation of checked baggage and carry-on baggage

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Before boarding the plane, you may be wondering, "Is it okay to bring this on?" or "What if it gets confiscated?"

Many people must be worried about this.
In particular, the differences in rules for carry-on baggage and checked baggage , as well as restrictions on carry-on items when entering Japan , are complicated.

Every year there is a constant stream of trouble.

In this article,

・Items prohibited in carry-on baggage

・Items prohibited in checked baggage

・Foods and plants that cannot be brought into Japan

We have organized the information in an easy-to-understand manner.

If you are planning a trip soon, be sure to check before you leave so you can start your trip with peace of mind.

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table of contents

1. Items prohibited in carry-on baggage

2. Items prohibited in checked baggage

3. Items that require special care when bringing into Japan

IV. Things to Note Regarding Bringing Items into Japan and Customs Declarations When Traveling Abroad

5. Luggage Checklist for Before Departure

FAQ (Frequently Asked Questions)

summary

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一、飛行機に乗る前に確認！機内持ち込みと預け荷物の違い

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Carry-on luggage is one of the most stringent categories of airport security checks.
In addition to the global standards, we have compiled a list of items that are particularly likely to be confiscated at Japanese airports.

項目 機内持ち込み 預け荷物
管理 自分で機内へ持ち込む チェックイン時に預ける
置き場所 座席上の収納棚・座席下 航空機の貨物室
主な制限 液体物・刃物・工具など モバイルバッテリーなど
貴重品 手元で管理する 入れない方がよい

Even for the same item, the rules differ depending on whether it can be carried on board or checked in.

For example, knives and cutters cannot be carried onto the aircraft, but they may be checked in if properly packed.

 

On the other hand, mobile batteries cannot be placed in checked baggage and must be carried on board after meeting certain conditions.

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二、機内持ち込みできないもの｜手荷物で注意する荷物

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国際線で100mlを超える容器に入った液体物

This is a standard rule that baggage is not allowed.

Lithium-ion batteries are prohibited from being checked in under international standards due to their high risk of fire .
Mobile batteries are only allowed in carry-on luggage.

Examples of what not to do:

・Mobile batteries (all capacities)

・Spare battery for camera

・Replacement batteries for drones

Some home appliances cannot be checked in because the batteries cannot be removed , so these are also prohibited.

ナイフ・カッター・一部のハサミ

Checked luggage is also very strict regarding dangerous items.

An example of something completely wrong:

・Fireworks and crackers

・Lighter gas cartridges

・Camping gas canisters (OD canisters, CB canisters)

工具・スポーツ用品

Airlines' rules state that they cannot be placed in checked baggage .

Examples of what not to do:

・PC, tablet, camera

・Cash and credit cards

・Passport and important documents

The reason is simple: there is a high risk of damage, loss, or theft, and they are not covered by insurance .

スプレー缶・ガス・引火性物質

Checked luggage is subject to at least a few tosses and bangs,
The rules strongly recommend that you do not bring in fragile items.

Examples of bad practices (or things to avoid):

・Glass bottles and ceramics (liquor bottles are particularly fragile)

・Tableware

・Precision equipment (external hard drives, drones, professional equipment)

容量制限があるリチウムイオン電池

These are items that are "prohibited" or "strongly discouraged" by the regulations of the country or airline.

Examples of what not to do:

・Raw meat, fresh fish, frozen foods

・Foods with particularly strong odors (fermented foods, pickles)

・Ice or dry ice (quantity limited)

Please note that for international flights, advance declaration is often required.

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三、預け荷物に入れられないもの・入れない方がよいもの

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モバイルバッテリー・予備電池

In Japan, it is one of the most strictly regulated items to prevent livestock diseases .

Examples of what is prohibited:

・Prosciutto, sausage, bacon

・Meat products such as beef, pork, and chicken

・Meat extract soup base, retort food

・"Souvenir meat jerky" bought overseas

Almost all animals are not allowed to be brought in unless you have an animal quarantine certificate.

Regarding souvenirs such as meat products (carrying them on as carry-on luggage, international mail, or parcel delivery)

電子タバコ・加熱式たばこ

The plants are strictly managed to prevent the introduction of pests and diseases .

Special attention is needed:

・Fruits (apples, oranges, mangoes, etc.)

・Raw vegetables

・Seeds, seedlings, flowers

・Plants and gardening tools with soil attached

An inspection certificate issued by the plant protection station of the exporting country is required.

"Regulations for bringing in vegetables and fruits from overseas"

貴重品・壊れやすいもの

Regulations vary by country, and some types of items may not be allowed into the country .

Special attention:

・Milk powder (including for infants)

・Raw milk and unpasteurized cheese

・Butter (restrictions apply depending on the country)

Dairy products are judged differently depending on the country, degree of processing, and quantity, so it is important to check in advance.

"Quarantine of Dairy Products"

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四、海外旅行で注意したい日本への持ち込み・税関申告

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肉類・果物・植物

Processed meat products such as ham and sausage, even if they are souvenirs or vacuum-packed products,

cannot be brought into Japan in principle unless they meet conditions such as having an inspection certificate.

 

Fruits, vegetables, seeds, and seedlings are also subject to plant quarantine.

Depending on the item and country of origin, bringing them in may be prohibited or require an inspection certificate.

医薬品・化粧品

Even for personal use, there are restrictions on the types, ingredients, and quantities of pharmaceuticals and cosmetics you can bring into the country.

If you exceed a certain amount or plan to bring in medicines containing regulated ingredients, you must complete advance procedures.

ブランド品・時計・バッグ

There are no restrictions on bringing genuine branded goods purchased overseas into Japan;

however, they are subject to customs declaration and taxation depending on their value and quantity.

On the other hand, items that infringe on intellectual property rights, such as counterfeit branded goods or replica products, may not be brought into Japan.
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五、出発前に確認したい荷物チェックリスト

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よくある質問（FAQ）

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Q1. スーツケースに入れてはいけないものは？

A1：預けるスーツケースには、モバイルバッテリーや予備電池、電子タバコなどを入れられません。機内へ持ち込むスーツケースでは、液体物、刃物、工具などにも注意が必要です。

Q2. モバイルバッテリーは預けるスーツケースに入れてもいい？

A2：入れられません。ショート防止措置をしたうえで機内へ持ち込みます。ただし、容量や個数によって制限があります。

Q3. 国際線の液体は何mlまで？

A3：原則として1容器100ml以下です。容量1L以下の透明で再封可能な袋にまとめます。

Q4. ハサミはスーツケースに入れてもいい？

A4：預け荷物には、刃先を保護すれば入れられる場合があります。機内持ち込みはサイズや形状によって判断が異なります。

Q5. 海外のお土産で持ち帰れないものは？

A5：肉類・肉加工品、果物、野菜、植物などは検疫の対象です。医薬品は成分と数量、高額品は税関申告の要否も確認しましょう。

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まとめ

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When packing, it is important to consider:

"Items prohibited in carry-on," "items prohibited in checked baggage," and "items not prohibited but best not to check."

 

We recommend checking these items when you are packing your suitcase, rather than right before departure.

Additionally, for international travel, easy access to your belongings is important.

Front-opening suitcases are convenient for retrieving your PC or valuables at the airport.

 

Be sure to check the latest rules of your airline and destination to ensure a safe and smooth trip.

執筆・監修

New Trip編集部
本記事は、スーツケース・旅行用品ブランド「New Trip」の編集部により制作されました。
製品開発やユーザーの声を活かしながら、ユーザーに合ったスーツケースや、旅行・出張をより快適にするアイテムを発信しています。

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