The first difference is the foundation of football: most professional players start their initial football training at the age of 5-9. General entry coaches are mostly retired players from national teams and professional teams who turn to behavior coaches. The training time is 4-6 times a week, and each training lasts for one and a half hours to two hours. The training content covers the physical fitness, skills, consciousness, sensitive body coordination, competitive training and other aspects of relatively equal. However, most students who enter the university spend happy football time in the school teams of colleges and universities at all levels, lacking systematic football training foundation, and there is a gap in starting. With the difference of age and training quality, the level gap becomes more and more obvious.

The second difference is the content and intensity of training: most of the football played by colleges and universities at all levels is in their spare time, and there is no clear requirement for the content, intensity and requirements of training. Even if a coach with professional football experience is hired to lead the team, the training quality and requirements cannot be the same as those of professional team players because of the relatively poor foundation. Depending on the training content, professional athletes sometimes need to reach a heart rate of more than/180 beats per minute, but in such a short situation as 1 minute or 2 minutes, they need to quickly return to below/120 beats per minute. These are the training results accumulated bit by bit at ordinary times, and the running distance in professional leagues should be at least 1 10,000 meters. This is a height that college football can hardly reach.

The third difference is the type and goal of work: professional football is a kind of work, and all personnel regard it as an important job and arrange their daily life and work around it. Personal abilities and values need to be tested on the court. In the professional football match, quick thinking, observation and decision-making need to be completed in a short time in a high-intensity game, which requires time accumulation.

The fourth point of the gap is the bearing of pressure: competitive sports emphasize victory or defeat, and if the result is lost, no matter how beautiful the process is, it is nothing. When there is praise, there will be booing and pressure from all sides. Under pressure, technical movements and mentality are also prone to deformation, and professional players are more resistant to pressure to resist external and internal pressures and face them as peacefully as possible. This is also stressful in different levels of leagues.