The invention discloses a memory alloy non-bracket invisible appliance and a manufacturing method thereof. The memory alloy non-bracket invisible appliance is composed of a base and a silicone rubber covering membrane, wherein the base is made of shape memory alloy filaments, and the silicone rubber covering membrane is coated on the surface of the base and displays dental primary color and gingiva color; the filaments are prepared from TiNi alloys good in shape memory effect, are good in flexibility at room temperature, and good in super elasticity at the oral temperature (32-37 DEG C). The manufacturing method of the appliance includes the steps of firstly obtaining a required original dentition model, processing an entity dentition model, conducting compression molding on a piece of rectangular dense mesh woven by the shape memory alloy filaments by using the entity dentition model to form an initial state base, and conducting heating and sizing; adjusting the phase-transition temperature, covering the base with the silicone rubber covering membrane, according to the complete denture manufacturing process, finishing the membrane to form a tooth-shaped part and a gingiva-shaped part, removing unwanted parts, dyeing the tooth-shaped part into dental primary color and dyeing the gingiva-shaped part into gingiva color. The memory alloy non-bracket invisible appliance has the advantages of being simple, easy to use, and high in orthodontic treatment effect.