Method for acquisition of target customers based on big data analysis, and searching method and apparatus

Embodiments of the invention provide a method for acquisition of target customers based on big data analysis, and a searching method and apparatus. The method comprises the following steps: acquiringbasic information of multiple customers, wherein the basic information comprises basic information representing the identities of the customers, credit information representing the credits of the customers, operation information representing the operation conditions of the customers and behavior information representing the transaction behaviors of the customers; determining association relationships of different customers according to the basic information, the credit information and the operation information, and generating a relationship graph representing the association relationships of the plurality of customers; based on the behavior information, analyzing the resource demand intensity of each client in the relationship graph; and acquiring target customers from the relationship graph according to the resou