An imaging module 100 includes a lens unit 10 which has a lens group 12, and an imaging element unit 20 which is fixed to the lens unit 10 and has an imaging element 27 which images a subject through the lens group 12. The lens unit 10 has a lens drive unit 16, and a flexible substrate 13 which includes a wiring group 13a which is electrically connected to the lens drive unit 16. The imaging element unit 20 has a wiring connection portion 24 which is electrically connected to the wiring group 13a included in the flexible substrate 13. The flexible substrate 13 has a portion of which a width in an arrangement direction of wires of the wiring group 13a is narrower than a width of an end portion on a side connected to the wiring connection portion 24.