As a major course for the environmental science and engineering major， environmental chemistry can deepen students'' understanding and mastery of the evolution law of harmful pollutants through the teaching of its experiments， guide students to apply theory to practice， and deepen students'' understanding and recognition of environmental chemistry-related theories. To meet the requirements for "new engineering" talent qualities and to aim at cultivating students'' comprehensive abilities， based on the talent training objectives and graduation requirements for environmental science and engineering students and based on the updating of experiment teaching syllabus， this paper explores and improves the teaching content， teaching methods and assessment methods. Through teaching reform， students'' comprehensive qualities such as practical operation ability， teamwork spirit and ability of independent analysis of environmental problems have been improved， laying a foundation for cultivating diversified and innovative outstanding engineering talents.