An improved method for preparing an adipose tissue biocomposite graft to serve a wide range of medical applications is presented. In particular, the embodiments consider a performing lipoplasty to derive a plurality of adipose tissue fragments containing at least one viable stem cell from a donor, harvesting said plurality of adipose tissue fragments from said donor, placing said plurality of adipose tissue fragments in contact with appropriate concentrations of a thrombin source and a fibrinogen source to achieve an appropriate gelling reaction and applying the mixture of said adipose tissue fragments, said thrombin source and said fibrinogen source to a wound site of the donor so as to promote wound healing. The adipose biocomposite graft of the present invention can be easily processed, molded and customized to precise dimensions. The present invention employs a three dimensional mold cavity to prepare multiple castings of said adipose tissue biocomposite grafts for an individual donor.