Article 14 of Judicial Interpretation No. 29 of 2016 stipulates that, in the criminal cases of environmental pollution, the special facts of environmental pollution can be established by means of appraisal opinions or examination reports, thus the determination and examination system for environmental pollution crimes in China is basically established. The determination and examination work has gradually been standardized and unified. However, in judicial practices, there arise the following problems: the subject for judicial appraisal is confusing, the appraisal opinions are difficult to adopt, the legal status of the examination report is unclear, and the number of talents with interdisciplinary knowledge is insufficient. The separation of laws and departmental regulations, the backward evaluation techniques, the supporting systems yet to be perfected, the uncertain items for determination, the unknown role of causal determination, and the historical factors in the development of the determination system are the root causes for the real dilemma. It is necessary to improve the determination and examination system for environmental pollution crimes by unifying legislative norms, improving institutional catalogue and determination items and contents, and clarifying the legal status of the determination opinions of the examination report, so that the technical guarantee for correctly handling environmental pollution crime cases and for unifying judicial scales of environmental pollution law enforcement can be offered.