Aiming at the rare war time spare parts, incomplete maintenance history data, situation factor heterogeneity and so on. Put forward the wartime spare parts allocation model method based on situation matching. Use wartime situation matching approximation degree, based on coexistence of accurate value and interval value in wartime situation and according to fairness principle, adopt average correlation coefficient (ARC) and average relative separability (ARS) to measure the quantity of spare parts allocated for each spare parts demand point and the actual degree of conformity of the situation. Finally, the Matlab software is used to verify the numerical value, which proves the effective applicability of the model.