The invention provides a universal packaging method of composite component easy to demold. The method comprises the following steps of cleaning a tool surface, and uniformly coating a releasing agent;covering the tool surface coated with the releasing agent with a holeless isolating film; conducting vacuum extraction treatment on the holeless isolating film and the tool surface to enable the holeless isolating film and the tool surface to be in a negative pressure state; laying prepreg on the upper surface of the holeless isolating film and laying strippable cloth, a porous isolating film, apressure equalizing plate and ventilated felt on a composite blank in sequence; conducting packaging on an assembled whole tool through a vacuum bag and then conducting heating and solidifying; conducting pressurization demolding on the solidified tool; and effectively separating the composite component from the tool through physical isolation of an auxiliary material and force applied by compressed air. Through the universal packaging method, the problem that a composite component with a complex molded surface is not likely to be attached to demolding cloth or is not likely to be demolded just by coating the releasing agent in the prior art is solved. Moreover, the situation that the composite component is damaged due to molding stripping implemented through a tool is avoided.