▶ 調査レポート

日本の防衛市場2026-2034

• 英文タイトル:Japan Defense Market Report by Armed Forces (Air Force, Army, Navy), Type (Personnel Training and Protection, C4ISR and EW, Vehicles, Weapons and Ammunition), and Region 2026-2034

IMARCが調査・発行した産業分析レポートです。日本の防衛市場2026-2034 / Japan Defense Market Report by Armed Forces (Air Force, Army, Navy), Type (Personnel Training and Protection, C4ISR and EW, Vehicles, Weapons and Ammunition), and Region 2026-2034 / IMA360902MR33資料のイメージです。• レポートコード:IMA360902MR33
• 出版社/出版日:IMARC / 2026年1月
• レポート形態:英語、PDF、約120ページ
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レポート概要
日本の防衛市場は2025年に364億米ドル規模に達しており、IMARC Groupの予測によれば、2026年から2034年にかけて年平均成長率(CAGR)2.43%で拡大し、2034年には451億米ドルに到達する見込みである。成長の主因は、自衛隊の近代化および能力強化への重点化であり、国家の戦略目標や安全保障ニーズとの整合を図る動きが市場を押し上げている。

防衛とは、国家が領土、主権、国民、国益を潜在的脅威や侵略から守るために講じる措置や戦略の総称であり、軍事力、防衛装備、情報活動、戦略立案など幅広い要素を含む。現代の防衛は従来型の戦争にとどまらず、サイバー攻撃、テロリズム、生物・化学兵器、情報戦など多様化する脅威にも対応する必要がある。そのため各国は、防衛技術、人材育成、インフラ整備への継続的な投資を行い、絶えず戦略を革新・適応させている。防衛能力の強化は地政学的環境や同盟関係、国際関係と密接に関連しており、地域の安定や国際秩序維持への貢献という側面も持つ。

日本の防衛市場動向として、まず地政学的緊張の高まりが挙げられる。日本は中国や北朝鮮といった主要地域大国に近接しており、特に北朝鮮のミサイル開発や核開発の進展が脅威認識を高めている。日本上空や周辺を飛行するミサイル発射実験は、防衛体制強化の緊急性を一層高め、市場拡大の要因となっている。これに対応して、日本は防空システムの強化、海上戦力の拡充、ミサイル迎撃技術への投資を進めており、インド太平洋地域の安全保障における抑止力強化と同盟関係の強化を図っている。

次に、防衛能力の近代化が重要な推進要因である。日本は老朽化した戦闘機のF-35への更新、艦艇の高度化、ミサイル防衛体制の拡充などを進めている。また、宇宙領域、サイバー戦、無人技術といった新領域にも積極的に取り組み、将来の戦闘環境を見据えた体制整備を進行中である。指揮・統制・通信(C3)能力の高度化により、リアルタイムでの統合作戦対応力の向上も図られている。さらに、防衛政策は専守防衛中心から長射程打撃能力の導入など一定の反撃能力を含む方向へと拡張しており、先端技術の統合による機動的かつ即応性の高い軍事力構築が目標とされている。

加えて、防衛予算の増額も市場成長を支える。脅威環境の悪化を背景に予算が拡大し、航空機や艦艇の更新、ミサイル防衛の強化、サイバー・宇宙防衛基盤の整備など幅広い分野への投資が進んでいる。また、国内防衛産業の育成を通じて輸入依存度を低減し、技術革新を促進する長期戦略も明確化している。

市場セグメンテーションでは、軍種別に航空自衛隊、陸上自衛隊、海上自衛隊に分類され、それぞれが装備更新や能力強化の対象となる。タイプ別では、人員訓練および防護、C4ISRおよび電子戦(EW)、車両、兵器・弾薬に区分され、統合情報システムや電子戦能力の重要性が高まっている。

地域別では、関東、関西・近畿、中部、九州・沖縄、東北、中国、北海道、四国の各地域が分析対象となっており、防衛関連施設や産業集積の分布を反映した構造となっている。

競争環境では、市場構造、主要企業のポジショニング、優位戦略、競争ダッシュボード、企業評価マトリクスなどの分析が行われている。主要企業には、BAE Systems PLC、川崎重工業、Lockheed Martin、三菱重工業、Northrop Grumman、新明和工業、Subaru(トヨタ)、Thales Group、Boeing、日本製鋼所、東芝などが含まれ、国内外の大手防衛関連企業が日本市場において重要な役割を担っている。

総じて、日本の防衛市場は地政学的緊張の高まり、能力近代化、予算拡大を背景に、緩やかながら着実な成長が見込まれており、インド太平洋地域の安全保障環境と密接に連動しながら中長期的に拡大する見通しである。

Japan defense market size reached USD 36.4 Billion in 2025. Looking forward, IMARC Group expects the market to reach USD 45.1 Billion by 2034, exhibiting a growth rate (CAGR) of 2.43% during 2026-2034. The rising focus of self-defense forces on modernization and capability enhancement that assist in aligning with the nation’s strategic goals and security requirements is primarily driving the market growth.

Defense refers to the measures and strategies implemented by a nation to protect its territories, sovereignty, people, and interests from potential threats and aggression. It encompasses a broad spectrum of components, including military forces, defense equipment, intelligence, and strategies, that work in unison to ensure national security and stability. The concept of defense is integral to the survival and prosperity of a nation, necessitating substantial investments in defense technologies, personnel training, and infrastructural development to mitigate and counteract both internal and external threats. In the contemporary scenario, defense mechanisms extend beyond conventional warfare, addressing challenges emanating from cyber threats, terrorism, biochemical warfare, and information warfare. The ever-evolving nature of threats compels nations to continuously innovate and adapt their defense strategies, fostering advancements in defense technologies and methodologies. The development of a nation’s defense capabilities is often closely intertwined with its geopolitical context, strategic alliances, and international relations, reflecting its commitment to peacekeeping, regional stability, and security. The comprehensive framework of defense serves not just as a deterrent to potential aggressors but also as a foundation for maintaining international order and harmony.

Armed Forces Insights:

Air Force
Army
Navy

The report has provided a detailed breakup and analysis of the market based on the armed forces. This includes air force, army, and navy.

Type Insights:

Personnel Training and Protection
C4ISR and EW
Vehicles
Weapons and Ammunition

Competitive Landscape:
The market research report has also provided a comprehensive analysis of the competitive landscape. Competitive analysis such as market structure, key player positioning, top winning strategies, competitive dashboard, and company evaluation quadrant has been covered in the report. Also, detailed profiles of all major companies have been provided. Some of the key players include:

BAE Systems PLC
Kawasaki Heavy Industries Ltd.
Lockheed Martin Corporation
Mitsubishi Heavy Industries Ltd
Northrop Grumman
ShinMaywa Industries, Ltd.
Subaru Corporation (Toyota)
Thales Group
The Boeing Company
The Japan Steel Works, LTD.
Toshiba Corporation

レポート目次

1 Preface
2 Scope and Methodology
2.1 Objectives of the Study
2.2 Stakeholders
2.3 Data Sources
2.3.1 Primary Sources
2.3.2 Secondary Sources
2.4 Market Estimation
2.4.1 Bottom-Up Approach
2.4.2 Top-Down Approach
2.5 Forecasting Methodology
3 Executive Summary
4 Japan Defense Market – Introduction
4.1 Overview
4.2 Market Dynamics
4.3 Industry Trends
4.4 Competitive Intelligence
5 Japan Defense Market Landscape
5.1 Historical and Current Market Trends (2020-2025)
5.2 Market Forecast (2026-2034)
6 Japan Defense Market – Breakup by Armed Forces
6.1 Air Force
6.1.1 Overview
6.1.2 Historical and Current Market Trends (2020-2025)
6.1.3 Market Forecast (2026-2034)
6.2 Army
6.2.1 Overview
6.2.2 Historical and Current Market Trends (2020-2025)
6.2.3 Market Forecast (2026-2034)
6.3 Navy
6.3.1 Overview
6.3.2 Historical and Current Market Trends (2020-2025)
6.3.3 Market Forecast (2026-2034)
7 Japan Defense Market – Breakup by Type
7.1 Personnel Training and Protection
7.1.1 Overview
7.1.2 Historical and Current Market Trends (2020-2025)
7.1.3 Market Forecast (2026-2034)
7.2 C4ISR and EW
7.2.1 Overview
7.2.2 Historical and Current Market Trends (2020-2025)
7.2.3 Market Forecast (2026-2034)
7.3 Vehicles
7.3.1 Overview
7.3.2 Historical and Current Market Trends (2020-2025)
7.3.3 Market Forecast (2026-2034)
7.4 Weapons and Ammunition
7.4.1 Overview
7.4.2 Historical and Current Market Trends (2020-2025)
7.4.3 Market Forecast (2026-2034)
8 Japan Defense Market – Breakup by Region
8.1 Kanto Region
8.1.1 Overview
8.1.2 Historical and Current Market Trends (2020-2025)
8.1.3 Market Breakup by Armed Forces
8.1.4 Market Breakup by Type
8.1.5 Key Players
8.1.6 Market Forecast (2026-2034)
8.2 Kansai/Kinki Region
8.2.1 Overview
8.2.2 Historical and Current Market Trends (2020-2025)
8.2.3 Market Breakup by Armed Forces
8.2.4 Market Breakup by Type
8.2.5 Key Players
8.2.6 Market Forecast (2026-2034)
8.3 Central/ Chubu Region
8.3.1 Overview
8.3.2 Historical and Current Market Trends (2020-2025)
8.3.3 Market Breakup by Armed Forces
8.3.4 Market Breakup by Type
8.3.5 Key Players
8.3.6 Market Forecast (2026-2034)
8.4 Kyushu-Okinawa Region
8.4.1 Overview
8.4.2 Historical and Current Market Trends (2020-2025)
8.4.3 Market Breakup by Armed Forces
8.4.4 Market Breakup by Type
8.4.5 Key Players
8.4.6 Market Forecast (2026-2034)
8.5 Tohoku Region
8.5.1 Overview
8.5.2 Historical and Current Market Trends (2020-2025)
8.5.3 Market Breakup by Armed Forces
8.5.4 Market Breakup by Type
8.5.5 Key Players
8.5.6 Market Forecast (2026-2034)
8.6 Chugoku Region
8.6.1 Overview
8.6.2 Historical and Current Market Trends (2020-2025)
8.6.3 Market Breakup by Armed Forces
8.6.4 Market Breakup by Type
8.6.5 Key Players
8.6.6 Market Forecast (2026-2034)
8.7 Hokkaido Region
8.7.1 Overview
8.7.2 Historical and Current Market Trends (2020-2025)
8.7.3 Market Breakup by Armed Forces
8.7.4 Market Breakup by Type
8.7.5 Key Players
8.7.6 Market Forecast (2026-2034)
8.8 Shikoku Region
8.8.1 Overview
8.8.2 Historical and Current Market Trends (2020-2025)
8.8.3 Market Breakup by Armed Forces
8.8.4 Market Breakup by Type
8.8.5 Key Players
8.8.6 Market Forecast (2026-2034)
9 Japan Defense Market – Competitive Landscape
9.1 Overview
9.2 Market Structure
9.3 Market Player Positioning
9.4 Top Winning Strategies
9.5 Competitive Dashboard
9.6 Company Evaluation Quadrant
10 Profiles of Key Players
10.1 BAE Systems PLC
10.1.1 Business Overview
10.1.2 Product Portfolio
10.1.3 Business Strategies
10.1.4 SWOT Analysis
10.1.5 Major News and Events
10.2 Kawasaki Heavy Industries Ltd.
10.2.1 Business Overview
10.2.2 Product Portfolio
10.2.3 Business Strategies
10.2.4 SWOT Analysis
10.2.5 Major News and Events
10.3 Lockheed Martin Corporation
10.3.1 Business Overview
10.3.2 Product Portfolio
10.3.3 Business Strategies
10.3.4 SWOT Analysis
10.3.5 Major News and Events
10.4 Mitsubishi Heavy Industries Ltd
10.4.1 Business Overview
10.4.2 Product Portfolio
10.4.3 Business Strategies
10.4.4 SWOT Analysis
10.4.5 Major News and Events
10.5 Northrop Grumman
10.5.1 Business Overview
10.5.2 Product Portfolio
10.5.3 Business Strategies
10.5.4 SWOT Analysis
10.5.5 Major News and Events
10.6 ShinMaywa Industries, Ltd.
10.6.1 Business Overview
10.6.2 Product Portfolio
10.6.3 Business Strategies
10.6.4 SWOT Analysis
10.6.5 Major News and Events
10.7 Subaru Corporation (Toyota)
10.7.1 Business Overview
10.7.2 Product Portfolio
10.7.3 Business Strategies
10.7.4 SWOT Analysis
10.7.5 Major News and Events
10.8 Thales Group
10.8.1 Business Overview
10.8.2 Product Portfolio
10.8.3 Business Strategies
10.8.4 SWOT Analysis
10.8.5 Major News and Events
10.9 The Boeing Company
10.9.1 Business Overview
10.9.2 Product Portfolio
10.9.3 Business Strategies
10.9.4 SWOT Analysis
10.9.5 Major News and Events
10.10 The Japan Steel Works, LTD.
10.10.1 Business Overview
10.10.2 Product Portfolio
10.10.3 Business Strategies
10.10.4 SWOT Analysis
10.10.5 Major News and Events
10.11 Toshiba Corporation
10.11.1 Business Overview
10.11.2 Product Portfolio
10.11.3 Business Strategies
10.11.4 SWOT Analysis
10.11.5 Major News and Events

Please note that this is only a partial list of the key players, and the complete list is provided in the report.

11 Japan Defense Market – Industry Analysis
11.1 Drivers, Restraints, and Opportunities
11.1.1 Overview
11.1.2 Drivers
11.1.3 Restraints
11.1.4 Opportunities
11.2 Porters Five Forces Analysis
11.2.1 Overview
11.2.2 Bargaining Power of Buyers
11.2.3 Bargaining Power of Suppliers
11.2.4 Degree of Competition
11.2.5 Threat of New Entrants
11.2.6 Threat of Substitutes
11.3 Value Chain Analysis
12 Appendix