Abstract: Particle therapy is an advanced radiotherapy modality and quality assurance(QA) is an important technical stage linked to the safety and efficacy of particle therapy. For the QA of beam performance in particle therapy, irradiation field uniformity, size and position of the beam spot, and so on are concerned in the lateral direction while the relation between energy and range, dose distribution, and so on in the longitudinal direction. At present, the methods usually used in QA measurements for particle therapy are applied in a manner of single item or off-line analysis, thereby leading to low efficiency and poor real-time performance. To aid the technique of beam performance verification in particle therapy, a software system dedicated to the method of planar fluorecence detection was developed, where C++ programming language, the interface development framework Qt5 and the computer vision library OpenCV were adopted. Lateral particle beam parameter and longitudinal range (energy) verification could be conducted with the software system, and the raw data of carbon-ion beam performance obtained in the Heavy Ion Medical Machine(HIMM) in Wuwei were employed to conduct the testing of software algorithms and functions. The successful testing demonstrated that the software system could be used in integrated fluorecence detection systems and was able to realize modular analyses of particle beam performance. Thus, the versatile software system developed in this work expands the use scope of the planar fluorecence detection technique and improves the verification efficiency of beam therapeutic performance in particle therapy significantly.