The invention discloses an anti-blocking instant heating type shower head, and relates to the technical field of bathroom accessories. The anti-blocking instant heating type shower head comprises a shower head body, a pipeline and a water cavity, wherein the pipeline and the water cavity are arranged in the shower head body, a partition board equal to the inner wall of the water cavity in shape and size is arranged in the water cavity, first through holes evenly arranged are formed in the partition board, the partition board divides the water cavity into an upper layer and a lower layer, the upper layer of the water cavity communicates with the pipeline, and the lower layer of the water cavity is provided with a movable blocking piece and a fixed blocking piece which are equal in shape andsize. Two staggered through holes are arranged, and when the two through holes are attached, closing of the shower head is achieved, when the two through holes are separated, communication of the shower head can be achieved, in cooperation with temperature difference power generation pieces, when hot water makes contact with the temperature difference power generation pieces, due to the temperature difference of two sides, generated current enables an electromagnet to generate magnetic force to attract a metal block until magnetic force overcomes water pressure and elastic force of an elasticpart, fluid is ejected out along the second through hole and the third through hole which are staggered, waste of cold water before heating can be avoided, and the discomfort experience of the humanbody is avoided.