Abstract: A fruit seed removing device includes a body, a sleeve, a button, a positioning block, a toggle, a pull rod, a connecting block and a knife. By pulling a hand of a pull rod, the pull rod will drive the knife to move inwards or expand outwards. Then the button is rotate through an angle to drive the positioning block to rotate. Then the pull rod is tightened and positioned. Therefore, the size of a ring for removing seeds is set. The adjustment of the size of the ring can be performed quickly and easily according to the range of the seeds in a fruit. Thereby no pulp will adhere to the user's hand. The operation is retained in clean state and can be performed easily and conveniently.