The invention relates to the field of comprehensive utilization of precious metals secondary resources, specifically to a spent auto-catalyst assisted recovery method of precious metals. The spent auto-catalyst assisted recovery method of precious metals comprises the following steps: A, preparation and treatment of materials; B, burdening and batch mixing; C, melting; and D, slag sampling and analysis. The method has advantages as follows: the recovery rate of precious metals is high; energy is saved and loss is reduced; economic benefit is increased; the operation is simple; and the production process is clean and environmentally-friendly.