Aiguo Li, Professor, supervisor of PhD students, chief engineer of the SSRF. Prof. Li participated in the construction of the national key infrastructure under the SSRF Project and the SSRF Beamline Project, and successively served as the head of the SSRF Micro Focusing and Application beamline, the head of the imaging division of the SSRF Beamline Project, and the chief engineer of the resulting beamlines. He has long been engaged in the development of the synchrotron radiation hard X-ray micro probe experimental technology, he led a team that completed the construction of the SSRF micro focusing endstation, and he has raised the resolution of the domestic hard X-ray probes to 1 micrometer, he has successfully developed the first 100 nm level zone plate focused nano probe in China, he has developed the first highly stable flexible hinge dynamic bending K-B mirror 200 nm focusing system in China, and he has successfully developed the first domestic hard X-ray multi-layer film nanoprobe capable of achieving a focus better than 30 nm.