The Mission of the KTTA is:
- To promote the cause of the education in the public schools of School District #73 (Kamloops-Thompson)
- To raise the status and promote the welfare of the teaching profession in the district of Kamloops-Thompson.
- To carry on such activities as may from time to time be ignited, prescribed or approved by the governing bodies of the Assocation or the British Columbia Teachers' Federation.
- To represent its member and to regulate relations with their employer through collective bargaining of the terms and conditions of employment.