Pet litter box

A pet litter box, comprising:

• a main body, wherein the main body is defined with a first accommodating slot and a first opening communicating with the first accommodating slot;
• a supporting assembly, wherein the supporting assembly comprises a seat and a limiting wall connected to the seat;
• the seat is connected to a wall forming a first opening, and the limiting wall comprises a first abutting position and a second abutting position, both of which are each provided with a protrusion;
• a cover, wherein an abutting portion is provided on an outwardly extending edge of the cover;
• when the cover is connected to the main body, the protrusion abuts against a side of the abutting portion that faces away from the main body, and a side of the abutting portion closer to the main body abuts against the seat, to lead the cover fix relative to the main body;
• the cover and/or the main body is defined with a second opening;
• when the cover is connected to the main body, the second opening is configured to allow pets to enter and exit the first receiving slot.