The invention relates to an analyzer magnetic ball cleaning device. The analyzer magnetic ball cleaning device comprises a basal body module, an uniform mixing module, a rotating module, a lotion injecting module and a waste liquid sucking module; the basal body module comprises a base plate, a bearing base, a rotating base shaft, a rotating motor and an uniform mixing lifting guide shaft; the uniform mixing module comprises an uniform mixing disc, an uniform mixing position, an uniform mixing screw motor and an uniform mixing rotating motor; the rotating module comprises a rotating disc and an eccentric rotating cup support; the lotion injecting module comprises an injecting fixed plate, a lotion needle, a lotion injecting bracket, a primer needle, an injecting needle frame, a support column and a magnet frame; and the waste liquid sucking module comprises a linear guide rail, a support stand plate, a guide rail transfer frame, a sucking screw motor, a reinforcing rib, a waste liquidsucking bracket and multiple waste liquid sucking needle units. The analyzer magnetic ball cleaning device uses multiple needles for injecting lotion and sucking waste liquid and multiple positions for eccentric rotary uniform mixing to achieve good cleaning effect, high instrument throughput, low cost and low fault rate.