Eleven of those aircraft crossed the Taiwan Strait’s median line, or areas close by, working with Chinese warships to carry out “joint combat readiness patrols”, the ministry added.
The strait’s median line once served as an unofficial barrier between the two sides, but Chinese planes now regularly fly over it. China says it does not recognise the line’s existence.
Taiwan sent its own forces to monitor, the ministry said.
“The security and prosperity of the Taiwan Strait region are closely related to global development and stability, and are obligations and responsibilities that all parties in the region must share,” it said in a statement.
“The military will continue to strengthen its self-defence capabilities in accordance with enemy threats and self-defence needs, and respond to regional threats.”
There was no immediate response from China’s defence ministry.
Earlier on Wednesday, China’s Taiwan Affairs Office said Beijing’s position that it would not renounce using force to bring Taiwan under its control was aimed at foreign interference and a tiny number of separatists, but added that Taiwanese needed to be disabused of “biases” against China.
Lai, who takes office on May 20, has repeatedly offered talks with China but has been rebuffed. He says he will maintain peace and stability across the strait, but that only Taiwan’s people can decide its future.