The invention discloses a computer data analysis and management system based on big data. The system comprises a data acquisition module, a data processing module, a data comparison module, a data analysis module, a reading module, a database, an information collection module, a controller, an indicator light, an information intercommunication module, a data calculation module and an encryption backup module. According to the invention, when the data analysis module receives an overuse signal, the CPU occupancy rate, the memory occupancy rate and the hard disk read-write rate that are used bya computer every time in last week are extracted from the reading module, and the obtained values of T, Y and U and the values of t, y and u are respectively compared with the preset values a, s and dand the preset values f, g and h, and the generated CPU solution signals, memory solution signals or hard disk read-write solution signals are transmitted to the information intercommunication modulethrough the controller and are sent to a mobile phone of a user through the information intercommunication module to be displayed, so that the phenomena of computer jamming, damage and the like can be prevented in advance.