The report, approved Tuesday by the Cabinet, was delayed for more than a week as Abe's ruling party panel demanded mention of additional examples of China's "one-sided" maritime activities, such as undersea gas and oil development in the East China Sea.
Abe's ruling coalition has been pushing to pass highly contentious legislation allowing Japan's Self-Defense Force to fight for foreign militaries even when it is not under attack, while expanding its role in international peacekeeping.
The 429-page white paper underscored that Japan's security risk had worsened overall and cited continuing missile and nuclear threats from North Korea and terrorist threats from the Islamic State group as examples.
The report raised concerns over China's recent reclamation work in the South China Sea, saying it had escalated regional tensions. The Defense Ministry report also added a new section that also refers to maritime activities elsewhere.
China has been building artificial islands in the vast, resource-rich area, alarming neighboring nations.