Abstract: Catch per unit of effort (CPUE) standardization is a basic work in stock assessment and management. In order to standardize poor information fishery data, a grey GM (1,1) CPUE standardization model was constructed based on the grey system method and four sets of research data of Jiangsu province from 2010 to 2014. The goodness of model was evaluated by the residual and grey correlation between the observed and the corresponding predicted values and aftertest residue checking. The results showed that all the models were acceptable under the residual test. All the grey relational values were larger than 0.6 after the grey relational checks. The aftertest residue checks displayed that all models were acceptable and that the traditional GM (1,1) model is feasible to standardize the poor information fishery data. thus, the results can be used to support the fisheries management.