Onboard spare part calculation method based on FLSIP and price sensitive model

The invention discloses a ship-mounted spare part calculation method based on FLSIP and a price sensitive model, and the method comprises the following steps: collecting spare part guarantee information which at least comprises the spare part shipment number POP, whether basic-level maintenance can be carried out, the spare part price and whether technical priority is carried out; historical fault information of spare parts is collected, and optimal replacement parameters BRF of the spare parts are set; the spare part utilization rate UR is calculated according to the spare part shipment number POP and the spare part optimal replacement parameter BRF; setting a spare part importance degree IMEC according to the importance of the ship-mounted spare parts on the ship and the executed tasks; setting a spare part price threshold value; and the number of the ship-mounted spare parts is calculated according to whether the ship-mounted spare parts can be subjected to base-level maintenance or not, the spare part uti