The invention discloses a mobile electronic device with a scoring function. The mobile electronic device comprises a processor (2), an external storage (5), an internal storage (6), a display unit (3), a power supply (7), a communication module (8), a voice output module (4) and a competition processing system (1), wherein the external storage (5) is connected with the processor (2); the competition processing system (1) comprises a recording module (14); and the recording module comprises a competition selecting unit (141), a clock unit (142), a competition event recording unit (143) and a score recording unit (144). The mobile electronic device with the scoring function has the advantages of adapting to various sports competitions, recording an entire competition event, prompting relevant personnel of competition progresses, intelligently generating professional competition schedules, reducing labor organization cost, increasing the competition organization efficiency, recording the competition history information of players, and contributing to increasing the competition participation and competition enthusiasm of players.