The invention discloses a big data traceability digital marketing cloud platform management system, which comprises a data acquisition subsystem. The data acquisition subsystem comprises a sensor, a light source and a camera device, whether the sensor is normal or not is checked, and whether the angle of the light source is normal or not is checked; under the condition that both the sensor and thelight source are normal, an equipment main power supply and the camera are started; and then the camera is selected for shooting, and two-dimensional code identification is performed. According to the invention, connection with a WeChat public account is realized, accurate flow is obtained with low cost, secondary purchase and the like of consumers are promoted by means of credits, red envelopesand the like, consumer data is tracked in real time, an intelligent data model is constructed, a user portrait is established, support is provided for scene marketing, and data support is provided forproduct marketing decisions.