The invention discloses a deformable multifunctional flame-retardant curtain, which comprises: a textile structure curtain body containing flame-retardant fibers, the upper part of the curtain body has a suspension structure, and two drawstrings made of flame-retardant fibers run through the suspension structure , the curtain body is provided with at least four hollow tubes, and supports are inserted into the hollow tubes, wherein at least the supports arranged on both sides are magnetic; when the curtain body is removed and draped on the human body, After the drawstring is tightened, it is tied to the neck of the human body, and the supports on both sides are adsorbed to each other to form a cloak that can wrap the human body; when the curtain body is removed and stands on the ground, the The support member is used as a support, and the drawstring is tightened to form a pyramid-shaped tent. Also disclosed is a curtain support rod structure for installing the above-mentioned deformable multifunctional flame-retardant curtain. To at least solve the problems of flammable curtains, single function, lack of emergency protection and shelter ability in the related technology.