The National Communications Commission said all the 12 brands it had tested, which also included handsets sold by Apple, Samsung, LG and Sony , did not violate the laws.
James Lou, an NCC official who was involved in the testing, said the commission, however, would request mobile phone makers make information transmission more secure.
The probe was started over concerns that the Chinese handset makers Huawei and ZTE were being used as snooping tools by the Chinese.
Taiwan is a bit sensitive to security matters involving China, which is its largest trading partner, but has never renounced the use of force to take back what it deems a renegade province.
Xiaomi, whose budget smartphones are popular throughout Asia, was previously accused of breaching data privacy. In August, the company said sorry and changed a default feature after a Finnish security company said Xiaomi collected address book data without users’ permission.
Taiwan’s government began performing independent tests on Xiaomi phones after media reports said that some models automatically send user data back to the firm’s servers in mainland China.
The probe was then widened to include local and foreign handsets. The NCC report said handsets made by HTC Corp, Asustek, Far EasTone, Taiwan Mobile and InFocus Corp, whose handsets are made by Taiwan’s Hon Hai Precision Industry were also cleared of breaching the data protection laws.