The utility model discloses a liquid level meter. According to the liquid level meter, a floater is in rotating stop fit with a guide frame and is in screw drive connection with a drive post, the upper end of the drive post extends out of the upper side of the guide frame, the extended part is provided with a pointer in a rotating stop mode, the pointer extends along the longitudinal direction of the drive post, a dial plate corresponding to the pointer is firmly mounted at the top of the guide frame, the dial plate is provided with a magnet, and correspondingly, the pointer is provided with an induction element. In use, when the floater moves up and down along with the liquid level, the drive post rotates along with the fluctuation of the floater through the screw drive connection, and the pointer at the top of the floater indicates the corresponding scale on the dial plate; the liquid lever meter is capable of intuitively and precisely displaying the liquid level data by means of the screw drive principle and electromagnetic induction principle, and meanwhile, the non-contact type electromagnetic induction monitoring and the direct-reading type pointer display corroborate each other to reduce the liquid level measuring error.