The invention discloses a mop and a cleaning tool. The mop comprises at least two clamping assemblies, a solution absorption part, a movable plate and sliding blocks; one end of the solution absorption part is detachably and fixedly connected with the movable plate; the clamping assemblies are uniformly distributed on the two sides of the solution absorption part, and each clamping assembly comprises a support rod and a clamping part, wherein one end of the support rod is connected with the movable plate through a revolute pair, the other end of the support rod is connected with the clamping part through a revolute pair at the first point of the clamping part, and the end face of one end of the clamping part is provided with a gear structure; sliding grooves are formed in the two sides of the first face of the movable plate, the sliding blocks are provided with rack structures matched with the gear structures, and the sliding blocks are clamped in the sliding grooves and form moving pairs with the sliding grooves. Accordingly, the technical problem that in the prior art, a cleaning sponge is single in shape, and the shape cannot be changed according to the cleaning requirement is solved.