The utility model relates to a technical field is used to the foliage fertilizer, discloses a device for foliage dressing supports control. The device includes strutting arrangement and isolating device, strutting arrangement supports with being used for including dull and stereotyped dull and stereotyped telescopic bracket, be provided with the through -hole on the flat board, the trunk of plantpasses the through -hole makes the ground position of plant in dull and stereotyped top, be provided with mobilizable isolating device on the flat board of through -hole, be used for covering the ground upper portion of plant, the last spraying mouth that is provided with of isolating device, dull and stereotyped upper surface still is provided with water -absorbing material. The utility model discloses foliage dressing supports the device of control, can keep apart the ground subtotal underground portion of plant under the condition that does not influence growth, can carry out even sprayingunder reality cultivation condition, prevents that spraying solution from getting into soil to can promote the accuracy and the science of the control of research foliage dressing.