innovative practice and frontier challenges，the teaching team focused on implementing the

training goal of the “Applied Physics Strengthening Foundation Plan” of University of Electronic

Science and Technology of China，and has carried out the reform of prac- tical training teaching

mode for undergraduate core courses，such as optical system design，optical communication tech-

nology， mathematical physics method， etc. In terms of teaching methods， the abstract，

complicated and tedious theoretical models are vividly displayed through 3D visual

simulation，which makes it easier to understand.In program- ming training，innovative design and 3D

reconstruction of optical system are carried out to cultivate students' practical programming

ability.In the challenging practice，the virtual simulation platform of the optical experiment is

constructed to inspire the innovative and challenging thinking of college students. This teaching method

has achieved remarkable teaching effect on training research talents with programming

simulation ability and challenging innovation practice a-bility，and provided talents reserve for science and engineering technology research to fulfil

national strategic demand.