Abstract: The international quasi-monoenergetic neutron sources for the single event effect (SEE) study are investigated, the related issues including the ⁷Li(p, n)⁷Be nuclear reaction, the facility layout, and the theoretical calculations and experimental measurements of the neutron field parameters such as the neutron flux, the neutron energy spectrum, the neutron beam profile and its uniformity, and the thermal neutron background, are systematically introduced. The quasi-monoenergetic neutron SEE experiments require that the neutron source have a high neutron flux, large and uniform beam spot, and low thermal neutron background, and that an accurate neutron energy spectrum be obtained through experiments. The quasi-monoenergetic neutron SEE experiments and three methods for the tail correction of neutron SEE cross sections are introduced.