During reclamation works，the abrasion to pipelines from dredged soil is an important influencing factor for project implementation.Currently,there is no study and research relating to abrasion of pipeline pumping sandy ball clay.On the basis of the statistic data of Xiamen Caicuo Project,we focuse on the study of abrasion from sandy ball clay,analyze the extent of abrasion to various parts of pipelines pumping such soil,and compare the soil with typical soils in the related standard form to determine the abrasion on pipelines,which can be used for adjustment and optimization of the deployment of pipelines.The research conclusion is instructive to similar projects,and such monitoring,comparison and analysis method for pipelines has common applicability.