"These images from the national collection are a fantastic resource for New Zealanders," said Arts, Culture and Heritage Minister Chris Finlayson.
"Te Papa is the national museum, so it is important that our nation's taonga are accessible to as many New Zealanders as possible."
Te Papa chief executive Arapata Hakiwai said the museum hoped to encourage people to use the images in education, research, innovation, personal enrichment and as creative inspiration.
"As kaitiaki (guardians) of the collections, this goes a long way to meeting our strategic priorities of increasing access to, and sharing our nation's treasures."