  Manufacturing of superconducting magnet for accelerators is a quite complex
process that is not yet fully industrialized. In this paper, after a short
history of the evolution of the magnet design and construction, we review the
main characteristics of the accelerator magnets having an impact on the
construction technology. We put in evidence how the design and component
quality impact on construction and why the final product calls for a
total-quality approach. LHC experience is widely discussed and main lessons are
spelled out. Then the new Nb3Sn technology, under development for the next
generation magnet construction, is outlined. Finally, we briefly review the
testing procedure of accelerator superconducting magnets, underlining the close
connection with the design validation and with the manufacturing process.
