PROBLEM TO BE SOLVED: To provide a small animal retention device that can be mounted on a small animal safely and easily without applying a heavy load on the small animal, can prevent the small animal from escaping easily, and retain the small animal while both the small animal and a care-giving side keep a stable state in a worry-free manner.SOLUTION: A small animal retention device 1 is a bag-like retention device in which a small animal such as a cat can be accommodated with its head exposed, and a section along the back of the small animal can be opened/closed. An inner fastener 7 that can hold the neck of the small animal is provided to the inside part in the vicinity of an opening 2a from which the head is exposed. The section along the back of the small animal can be opened/closed by a slide fastener 3 having three sliders S1-S3.SELECTED DRAWING: Figure 1
