The invention relates to the field of network teaching, more particularly, to a remote network teaching system and method. The system comprises a network module, a teacher login module, a course arrangement module, a video teaching module, an online interaction module, a student login module, an online learning module, an online questioning module, an online discussion module, an after-class learning module, a review module, a preview module, a tracking module, an iris recognition module, a prompt module and a remote reminding module. With the online interaction module, the online questioningmodule and the online discussion module, the real-time interaction between teachers and students and between students can be realized; teachers can conveniently communicate with each other to obtain teaching mind, so that the teaching efficiency is improved; in the after-class learning process of students, the system can monitor the learning states of the students in real time; and when the students quit the system without completing learning tasks or replace others in the midway to operate the system, the prompt module gives out prompt tones to prompt the students to continue to complete thelearning tasks.