A multi-dimensional hierarchical remanufacturability evaluation model and method was proposed to solve the problems of ignoring the influence of recycling, selling, policy environment and social environment as well as the complexity and coupling caused by multiple indexes in existing remanufacturability evaluation methods. By analyzing the task flow of end-of-life product remanufacturing system, 22 influence factors were extracted, and then a multi-dimensional hierarchical remanufacturing evaluation model was constructed with technology, economy and environment as key efficiency indexes. An index quantification method based on expert fuzzy evaluation method was proposed to simplify the difficulty of index quantification. The index weight was calculated by using the structural entropy weight method, in order to take both subjective and objective factors into account, and sensitivity analysis was carried out by using OAT (One-At-a-Time) method. A piecewise hierarchical comprehensive remanufacturability evaluation method of end-of-life mechanical parts was proposed based on piecewise weighted rank sum ratio, in order to overcome the complexity and coupling problems caused by multiple indexes. The case study of the main parts of the Passat B5 engine such as cylinder block, cylinder head, crankshaft, connecting rod, shows that the remanufacturability of connecting rod is the best and that of cylinder head is the worst, which verifies the effectiveness and feasibility of the proposed method.