A remaining printing material measurement method, and an additive manufacturing apparatus are provided. The remaining printing material measurement method is applied to the additive manufacturing apparatus. The measurement method allows for determining whether the remaining printing material in a resin vat is enough to complete the printing of a model to be printed before printing or during printing, which is beneficial to promote a user to add the printing material when the printing material in the resin vat is insufficient, so as to avoid printing delay or interruption caused by not adding printing materials in time and greatly increase the operation efficiency.