The treatment measures for substandard environmental monitoring in blood transfusion department need to start from the following aspects: 1. Confirm the reasons for not meeting the standards: firstly, carefully check the monitoring data to confirm which parameters are not up to the standards, and then investigate the possible reasons one by one. For example, the microbial content in the air exceeds the standard, which may be due to the failure of air purification equipment or insufficient indoor sanitation. 2. Take immediate remedial measures: take corresponding remedial measures in time according to the reasons that do not meet the standard parameters. For example, if it is found that the microbial content in the air exceeds the standard, it is necessary to repair or replace the air purification equipment; At the same time, it is necessary to thoroughly clean the room and keep the sanitary environment of the blood transfusion department of the hospital in a good state. 3. Strengthen management: Because the environment of blood transfusion department has an important influence on the treatment effect and recovery of patients, it is necessary to strengthen supervision in daily management. The management of indoor sanitation and air quality testing should be stricter to ensure that the environmental quality meets the standards. To sum up, it is necessary to confirm the reasons in time, take remedial measures in time and strengthen daily management, so as to ensure that the environmental quality of blood transfusion department reaches the standard and ensure the treatment and health and safety of patients.