A method for manufacturing a target object. The method includes: acquiring a data file and material property parameters of a printing model, the printing model being a three-dimensional model to be printed; generating an initial support model and a target finite element model comprising the initial support model according to the data file and the material property parameters; determining whether the target finite element model satisfies a stress intensity condition; in cases where the target finite element model does not satisfy the stress intensity condition, adjusting the initial support model in the target finite element model, so that the adjusted target finite element model satisfies the stress intensity condition, to obtain a target support model; and performing 3D printing on the printing model according to the target support model.