Association analysis is an approach to identify the relationship of molecular markers or candidate genes with morphological traits in a given population based on linkage disequilibrium. Fifty-nine polymorphic SSR markers were applied for genotyping on 192 core collections of pea (Pisum sativum L.) to identify their genetic diversity,and to detect linkage disequilibrium of pair wise loci in the targeted population composed of the 192 core collections. The association analysis between 59 SSR loci and 19 morphological traits was performed by using TASSEL GLM(General Linear Model) program. High polymorphism and various degree of linkage disequilibrium (LD) were detected among SSR loci. Associations between 32 SSR loci and 14 morphological traits were detected, some loci were found associated with two or more morphological traits.