Vehicle valuation method, system and device based on big data and readable storage medium

The embodiment of the invention provides a vehicle valuation method based on big data. The method comprises the following steps: receiving user basic information of a target user, valuation strategy selection information, vehicle basic information of an associated vehicle and vehicle historical information; obtaining a plurality of weight parameters corresponding to the vehicle basic information and the vehicle historical information, and inputting the weight parameters into a first vehicle value estimation model; obtaining a first valuation price of the associated vehicle according to the first vehicle valuation model; determining a loss level of the associated vehicle and a transaction vehicle data set based on the final residual value rate corresponding to the first estimated value price; evaluating a second estimated value price of the associated vehicle according to a plurality of transaction data in the transaction vehicle data set and the first estimated value price of the associated vehicle; determini