The invention provides a floor heating water divider removing tool. The floor heating water divider removing tool comprises a pipe wrench, wherein the pipe wrench is used for clamping a hose, a support post mounting hole is formed in a handle of the pipe wrench, a support post and a crowbar are further arranged, the lower end of the support post is fixed to the interior of the support post mounting hole, the upper end of the support post is connected with the middle of the crowbar, a pressing acting point is formed on one end of the crowbar, and the other end of the crowbar is supported on a main pipe of a branch pipe. The invention further provides a use method of the floor heating water divider removing tool. The use method comprises the steps of (1) loosening a pipe screw of a to-be-removed branch pipe; (2) aligning the wrench with a to-be-removed position of the branch pipe, and forcibly holding the wrench so as to clamp the branch pipe; (3) installing the crowbar and the support post on the wrench, wherein the front end of the crowbar is abutted with the lower part of a water inlet and return main pipe; and (4) pressing the back part of the crowbar downwards, and transferringforce to the wrench by virtue of the support post, wherein the branch pipe is clamped by the wrench at the moment, and therefore, the branch pipe is forcibly pulled so as to disengage from the main pipe. According to the removing tool, the branch pipe is removed by utilizing a lever principle, the hose can be removed from a water divider through one-time or two-time pressing operation, and the operation is convenient and quick.