The Seediq (sometimes Sediq, Seejiq, pronounced [seˈʔediq], [səˈdiq], or [səˈʔəɟiq]; Chinese: 賽德克族; pinyin: Sàidékèzú) are a Taiwanese indigenous people who live primarily in Nantou County and Hualien County.

[2] Starting from 1897, the Japanese began a road building program that brought them into the indigenous people's territory.

At this time, the leader of Mahebo, Mona Rudao, tried to resist rule by Japan, but he failed twice because his plans were divulged.

In 1903 the Japanese launched a punitive expedition to seek revenge for their earlier loss at Renzhiguan.

The handling of the incident by the Japanese authorities was strongly criticised, leading to many changes in aboriginal policy.