According to traditional sources, such as the 2nd century BC biography written by Sima Qian, Sun Tzu was born in Qi during the Spring and Autumn Period of China (722—481 BC) and became a heroic general for the king of Wu, King Helü. His victories then inspired him to write The Art of War. The period was a time of constant war among seven nations (Zhao, Qi, Qin, Chu, Han, Wei and Yan) seeking to control a vast expanse of fertile territory in Eastern China.

One legend of Sun Tzu's life goes as follows: The king of Wu tested Sun Tzu's skills by commanding him to train a harem of 180 concubines into soldiers. Sun Tzu divided them into two companies, appointing the two concubines most favored by the king as the company commanders. When Sun Tzu first ordered the concubines to face right, they giggled. In response, Sun Tzu said that the general, in this case himself, was responsible for ensuring that soldiers understood the commands given to them. Then, he reiterated the command, and again the concubines giggled. Sun Tzu then ordered the execution of the king's two favored concubines, to the king's protests. He explained that if the general's soldiers understood their commands but did not obey, it was the fault of the officers. Sun Tzu also said that once a general was appointed, it was their duty to carry out their mission, even if the king protested. After both concubines were killed, new officers were chosen to replace them. Afterwards, both companies performed their maneuvers flawlessly.

Sima's biography claims that Sun Tzu later proved on the battlefield that his theories were effective, that he had a successful military career, and that he wrote The Art of War based on his tested expertise. His descendant, Sun Bin, also became a famous scholar of the military arts.

The Art of War is attributed to Sun Tzu, and it was originally called ???? (), or simply ?? Sun Tzu. It presents a philosophy of war for managing conflicts and winning battles. Contrary to popular belief, it contains not only the writings of the original author, but also commentary and clarifications from later military philosophers, such as Li Quan and Du Mu. It is accepted as a masterpiece on strategy and frequently cited and referred to by generals and theorists since its publication, translation and distribution the world over.

Of the texts written before the unification of China in the 2nd century BC, six major works survived, including The Art of War. During the Song Dynasty in the early 1st millennium AD, the six works were combined with a Tang Dynasty text into a collection called the Seven Military Classics. As a central part of that compilation, The Art of War formed the foundations of orthodox military theory in China. Illustrating this point, the book was required reading to pass the tests needed for imperial appointment to military positions.

In the book, Sun Tzu uses language that may be unusual in a text on warfare and strategy. For example, the 11th chapter states that a leader must be "serene and inscrutable" and capable of comprehending "unfathomable plans". The meaning of such statements are clearer when interpreted in the context of Taoist thought and practice. Sun Tzu viewed the ideal general as an enlightened Taoist master, which has led to The Art of War being considered a prime example of Taoist strategy. The Art of War is distinguished from similar Western works, such as Prussian general Carl von Clausewitz's On War, by this spiritual dimension. Awareness of the Taoist viewpoint in The Art of War is essential to understanding its intended meaning.

The book is not only popular among military theorists, but it has also become increasingly popular among political leaders and those in business management. Despite its title, The Art of War addresses strategy in a broad fashion, touching upon public administration and planning. The text outlines theories of battle but also advocates diplomacy and cultivating relationships with other nations as essential to the health of a state. In fact, it is still in use to this very day by the army as a basis of strategies.

In the early 1970s, scholars uncovered a collection of ancient texts written on unusually well-preserved bamboo slips. Among them were The Art of War and Sun Bin's Military Methods. Although Han Dynasty bibliographies noted the latter publication as extant and written by a descendant of Sun, it had since been lost. The finding of Sun Bin's work was therefore considered to be extremely important, because of Sun Bin's relationship to Sun Tzu, and the work's illustration of military thought in late Chinese antiquity. The discovery as a whole expanded the total known Chinese military works by hundreds. However, Sun Bin's treatise is the only known additional text surviving from the ancient period or bearing a close association with Sun Tzu.

Scholars have expressed doubt in Sun Tzu's historicity and the traditional dating of The Art of War. The skepticism is fueled by factors that include historical inaccuracies and anachronisms in the text, as well as the unlikelihood of the execution of the king's favorite concubines. Increasing skepticism, which sometimes cause scholars to completely deny the existence of a historical figure named Sun Wu (Sun Tzu), has led to acrimonious debate between skeptics and traditionalists, especially in China. Attribution of The Art of Wars authorship varies among scholars, and have included people and movements including Sun; Chu scholar Wu Zixu; an unknown author; a school of thought in Qi or Wu; Sun Bin, and others.

Traditionalists attribute the authorship of The Art of War to the historical figure Sun Wu, who is chronicled in the Records of the Grand Historian and the Spring and Autumn Annals. He was reputedly active in the late 6th century BC, beginning c. 512 BC. The appearance of features from The Art of War in other historical texts is considered to be proof of his historicity and authorship. Certain strategic concepts, such as terrain classification, are attributed to Sun Tzu. Their use in other works, such as by the compilers of The Methods of the Sima, is considered proof of Sun Tzu's historical priority.

Scholars that identify issues with the traditionalist view point to anachronisms in The Art of War that include terms, technology, philosophical ideas, events, and military techniques. There is a disparity between the large scale wars and sophisticated techniques detailed in the text, and the more primitive small scale battles that predominated the 6th century BC. There is also a lack of early contemporary evidence supporting the centuries-later accounts of Sun. For example, there is no corroborating support for his role in the wars between Wu and Yue in the Zuo Zhuan, which is considered the authoritative record of the period. Regardless of Sun Tzu's historicity and the actual authorship of The Art of War, the figure of Sun Tzu and his traditionally attributed work have been influential.

Sun Tzu's The Art of War has influenced many notable figures. Traditional histories recount that the first emperor of a unified China, Qin Shi Huang, considered the book invaluable in ending the Age of Warring States. The Art of War was introduced in Japan c. AD 760, and the book quickly became popular among Japanese generals. The work also significantly influenced the unification of Japan. Mastery of its teachings was honored among the samurai, and its teachings were both exhorted and exemplified by influential daimyo and shogun such as Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu.

Historians popularly recount how French emperor Napoleon studied Sun's military writings and used them to successfully wage war against the rest of Europe. The emperor's disregard for central principles such as attentiveness to temporal conditions is largely credited for his eventual defeat in Russia. Admiral of the Fleet T?g? Heihachir?, who led Japan's forces to victory against Russia in the Russo-Japanese War, was an avid reader of The Art of War.

Communist Chinese leader Mao Zedong partially credited his victory over Chiang Kai-shek and the Kuomintang in 1949 to The Art of War. The work strongly influenced Mao's writings about guerrilla warfare, which further influenced communist insurgencies around the world.

General Vo Nguyen Giap, the military mastermind behind victories over French and the American forces in Vietnam, was an avid student and practitioner of Sun Tzu's ideas. America's defeat here, more than any other event, brought Sun Tzu to the attention of American military thought leaders. Ho Chi Minh translated the work for his Vietnamese officers to study.

The Department of the Army in the United States, through its Command and General Staff College, has directed all units to maintain libraries within their respective headquarters for the continuing education of personnel in the art of war. The Art of War is mentioned as an example of works to be maintained at each individual unit, and staff duty officers are obliged to prepare short papers for presentation to other officers on their readings.

Sun Tzu's The Art of War is listed on the Marine Corps Professional Reading Program (formerly known as the Commandant's Reading List).

During the Persian Gulf War in the 1990s, both General Norman Schwarzkopf, Jr. and General Colin Powell practiced Sun Tzu's principles of deception, speed, and attacking the enemy's weakness.

Mark McNeilly writes in Sun Tzu and the Art of Modern Warfare that a modern interpretation of Sun and his importance throughout Chinese history is critical in understanding China's push to becoming a superpower in the 21st century. Modern Chinese scholars explicitly rely on historical strategic lessons and The Art of War in developing their theories, seeing a direct relationship between their modern struggles and those of China in Sun Tzu's time. There is a great perceived value in Sun Tzu's teachings and other traditional Chinese writers, which are used regularly in developing the strategies of the Chinese state and its leaders.

In 1996, a 13-episode TV series titled Sun Wu (???? - ??????) was produced, starring Sun Yanjun as Sun Tzu.

In 2008, producer Zhang Jizhong adapted Sun Tzu's life story into a 40-episode historical drama TV series titled Bing Sheng (??; also called The Ultimate Master of War: Sun Tzu), starring Zhu Yawen as Sun Tzu.