A water purification filter element, comprising: a filter bottle ; a filter material detachably mounted in the filter bottle ; an end cover detachably mounted at one end of the filter bottle and capable of sealing the filter material in the filter bottle ; and a water self-stopping and passing structure arranged at an another end of the filter bottle and comprising water flow channels , wherein water-stopping elastic blocks are arranged in the water flow channels respectively, and are arranged in the water flow channels via water-stopping springs respectively; when the filter element is mounted, the water-stopping elastic blocks are pressed, the water-stopping springs are contracted, and the water-stopping elastic blocks move to open the water flow channels ; and when the filter element is disassembled, the water-stopping springs stretch, the water-stopping elastic blocks reset, the water flow channels are sealed by the water-stopping elastic blocks to achieve a water self-stopping effect; and an annular water inlet channel for guiding and positioning, and the annular water inlet channel is arranged at the other end of the filter bottle and is able of introducing a water source into the filter bottle ; a side wall of the filter bottle is of a double-layer wall structure formed by an outer layer wall and an inner layer wall on which the outer layer wall is overlapped, a filter bottle water channel is formed between the outer layer wall and the inner layer wall, and a filter bottle water distribution hole communicating with the filter bottle water channel is formed in the inner layer wall; and the filter bottle water channel communicates with the annular water inlet channel , and the annular water inlet channel is configured for introducing the water source into the filter bottle water channel . a filter bottle ; a filter material detachably mounted in the filter bottle ; an end cover detachably mounted at one end of the filter bottle and capable of sealing the filter material in the filter bottle ; and a water self-stopping and passing structure arranged at an another end of the filter bottle and comprising water flow channels , wherein water-stopping elastic blocks are arranged in the water flow channels respectively, and are arranged in the water flow channels via water-stopping springs respectively; when the filter element is mounted, the water-stopping elastic blocks are pressed, the water-stopping springs are contracted, and the water-stopping elastic blocks move to open the water flow channels ; and when the filter element is disassembled, the water-stopping springs stretch, the water-stopping elastic blocks reset, the water flow channels are sealed by the water-stopping elastic blocks to achieve a water self-stopping effect; and an annular water inlet channel for guiding and positioning, and the annular water inlet channel is arranged at the other end of the filter bottle and is able of introducing a water source into the filter bottle ; a side wall of the filter bottle is of a double-layer wall structure formed by an outer layer wall and an inner layer wall on which the outer layer wall is overlapped, a filter bottle water channel is formed between the outer layer wall and the inner layer wall, and a filter bottle water distribution hole communicating with the filter bottle water channel is formed in the inner layer wall; and the filter bottle water channel communicates with the annular water inlet channel , and the annular water inlet channel is configured for introducing the water source into the filter bottle water channel . <EOS>