The invention discloses a skin cleaner for hematopoietic stem cell transplantation for blood diseases and relates to the technical field of medical cleaning equipment. The skin cleaner comprises a base, wherein a cleaning solution placement tank is fixedly connected with the upper surface of the base. According to the skin cleaner for hematopoietic stem cell transplantation for the blood diseases, through arranging an electromotor, a rotating shaft I, a rotating shaft II, a bevel gear I, a bevel gear II, a gear I, a gear II, a residual gear, a limiting block, a limiting lever and a connecting column, a cleaning cotton fixing block can be driven to continuously perform horizontal reciprocating movement in a back and forth direction, then, a cleaning process for the surface of skin of a sufferer is achieved under the action of arranged cleaning cotton, and the workload of medical personnel is reduced; and through arranging a miniature water pump, a pumping pipe, a telescopic hose I, a flow diversion member, a telescopic hose II, a hard pipe and an atomization sprayer, a cleaning solution inside the cleaning solution placement tank can be sprayed to the surface of the skin of the sufferer, and then, the skin of the sufferer can be cleaned under the matching of the cleaning cotton.