1. Population diversity of endophytic bacteria in ginseng and development of biocontrol bacteria resources, doctoral project of introducing talents in Hebei University, moderator.

2. Study on the isolation of endophytic bacteria population and dominant functional strains from vegetable plants by non-culture method (project number: C2004000 106), which is supported by the Natural Science Foundation of Hebei Province.

3. Study on the formation of bacterial biofilm on rice root surface and its community diversity. : 2006002800 1), supported by the doctoral program special fund of the Ministry of Education.

4. Preparation of enzyme preparation for biological depilation of leather and cloning of protease gene of its producing strain. The project of Natural Science Foundation of Hebei Province has been completed and participated.

5. The relationship between rhizobia isolated from kidney beans and other hosts and Agrobacterium tumefaciens (project number: 6053024) participated in the project of Beijing Natural Science Foundation.