The invention relates to the technical field of tents, in particular to a portable baby tent. The portable baby tent comprises two folding bottom rods arched outwards. The two folding bottom rods aremutually hinged end to end to form a closed structure, a plurality of folding stay rods arched upwards are arranged between the two folding bottom rods, each of the folding bottom rods is composed oftwo bottom rod half bodies, wherein one ends of the bottom rod half bodies are mutually hinged. Each of the folding stay rods is composed of two stay rod half bodies, wherein one ends of the stay rodhalf bodies are mutually hinged. The other ends of the two stay rod half bodies are separately hinged to the two bottom rod half bodies in the same folding bottom rod. During folding, the two foldingbottom rods are folded toward the middle, and the folding bottom rods drive the folding stay rods to further be folded toward the middle, so that the whole tent is folded from left and right to the middle into a flat structure, and then the front and rear ends of the folding bottom rods and the folding stay rods are folded toward the middle, thin thickness and small size are achieved, space is saved, and the portable baby tent is convenient to carry and storage, easy to fold and unfold and convenient to use.