Sample pretreatment is an important step in chemical analysis.Especially in environmental analysis,sample pretreatment is usually the bottle-neck step due to the complex matrices of environmental samples and the extremely low concentrations of pollutants.Development of novel sorbent materials is an important approach to solve this problem.Microporous organic polymers（MOPs）,ordered mesoporous silica（OMS）,metal-organic frameworks（MOFs）,molecularly imprinted polymers（MIPs）,carbon nanotubes（CNTs） and graphene possess the advantages of low framework density,large surface area,tunable pore size and structure,excellent chemical and physical stability,which have shown a great potential in the field of sample pretreatment techniques.In this paper,the preparation and progresses on the applications of these new nano-materials in sample pretreatments such as solid-phase extraction, dispersive solid phase extraction, solid phase microextraction,stir rod adsorptive extraction,matrix solid phase dispersion,etc,are reviewed,which could provide consultations on applications of new nano-materials in sample pretreatments to complex and trace samples.