The invention discloses test equipment for the research of fog drop drift, and a processing method for the test equipment. The equipment comprises a dragging guide rail, a sliding block arranged on the dragging guide rail, a trailing vortex generation device hooked at the sliding block, a fog drop generation device hooked at the sliding block, a motor connected with the sliding block, and a PIV system. The sliding block slides along the dragging guide rails at a preset speed under the action of the pulling force generated by the motor, drives the trailing vortex generation device to generate trailing vortex comprising tracer particles and drives the fog drop generation device to generate fog drops. The equipment also comprises the PIV system which is used for capturing the motion images of the trailing vortex and fog drops in a fixed extending plane, carries out the processing of the motion images, and obtains the change laws of the fog drop drift and trailing vortex movement with time. The equipment can analyze and obtain the correlation of the fog drop drift and trailing vortex movement through simulating the trailing vortex movement and the fog drop drift under the real conditions, and provides theoretical guide for the research of the fog drop drift in a process of aviation drug application.