Optical unit with image stabilization function

An optical unit with an image stabilization function, comprising:

• a movable body having a camera module and a frame-shaped holder that surrounds the camera module from an outer peripheral side;
• a swing support mechanism that swingably supports the movable body around a swing center point set in advance on an optical axis of the camera module inside the movable body;
• and
• a fixing body that supports the movable body with the swing support mechanism interposed therebetween,
• wherein
• the holder includes three or more of a plurality of protrusions that project radially,
• the fixing body includes a plurality of arc surfaces that come into contact with each of the plurality of protrusions from an outer peripheral side,
• the swing support mechanism includes the plurality of protrusions and the plurality of arc surfaces, and
• the arc surface is a concave curved surface obtained by transferring part of a virtual spherical surface centered on the swing center point.