Strip member provided with solar cell, and solar cell shutter

A slat member (3s) provided with a solar cell is provided with: a plate-shaped slat main body section (31); a plate-shaped solar cell unit (32) fixed to the plate-shaped slat main body part (31); and a connection box (33). A plate-shaped slat main body (31) has a first surface (31f), a second surface (31s) opposite the first surface (31f), and a first side surface (31t), and has a longitudinal direction along a first direction along the first surface (31f). A plate-shaped solar cell (32) has a third surface (32s) located on the first surface (31f) side, a fourth surface (32f) opposite the third surface (32s), and a second side surface (32t) connecting the third surface (32s) and the fourth surface (32f), and has a longitudinal direction along the first direction. The connection box (33) has a conductor part (33m), a housing part (33b), and a wiring cable (33c). The conductor section (33m) is connected to a wiring material that is connected to an electrode of the plate-shaped solar cell (32). The housing secti