The eight men and two women were detained by the Special Branch Counter Terrorism Division following simultaneous operations in Kuala Lumpur, Perlis, Perak, Selangor, Negri Sembilan and Malacca states yesterday.
Among those arrested were two civil servants, a former interior designer and a kindergarten teacher.
Inspector-General of Police Khalid Abu Bakar said that the ten were suspected of spreading the IS ideology, collecting funds to assist IS and arranging for Malaysian IS members to go to Syria.
The Southeast Asian country has arrested nearly 100 citizens this year on suspicion of links to Islamic State.