Most veterinary clinics record pet data and their healing into documents, this operation takes a long time to record each case. So that we develop the Concurrent Veterinary Tracking System (CVTS) for recording the pet healing rapidly. There are three types of user in the CVTS : employee; veterinarian; and manager. The employee role is the lowest authority and the manager is the highest. Employees can manage the master data in the system that are the pet’s owner, pet data, treatment fee, and the queue system. Veterinarians can modify the treatment data. The final users, the manager can manipulate the user authority data and access the revenue of the clinic. The architecture of this system is model, view, and controller by servlet, JSP and Java language, MySQL is the database management system and iReport is the report generating tool. The average CVTS time for getting pet’s data is 25.14 seconds and a standard deviation value is 10.02. While as the average time of the original process is 37.09 seconds, s.d. is 23.24. Therefore CVTS is faster accessing than the original pet record procedure.