The NBA's current draft process and related rules are based on the provisions of the 2005 collective bargaining agreement, and the post-2005 collective bargaining has not made major changes to the draft system. Players must be at least 19 years old to participate in the NBA Draft, which is calculated by subtracting 19 from the draft year to get a year, and if the player was born in that year or before, then the criteria are met. For the 2013 draft, players must be born no later than December 31, 1994, and the youngest player this year is Giannis Antetokounmpo from Greece, born on December 6, 1994.

With the exception of international players, any other players must have graduated from high school for at least one year. For example, O.J. Mayo, who was born on November 5, 1987, was 19 years old in November 2006 and was age-eligible for the draft, but he was six months away from graduating from high school, and with those six months and one year after graduating from high school, Mayo did not meet the criteria for the NBA Draft until 2008, when he became a scout.

When a player turns 19 and has graduated from high school for a year, there are two ways to run, depending on the circumstances. The first is automatic draft eligibility, which is automatically drafted if any of the following conditions are met: 4 years of college play, 4 years after graduating from a U.S. high school (but not going to a U.S. university), signing with a professional team outside the NBA and playing (non-international players), and international players at least 22 years old.

The second way to participate is to declare, and any player who is not automatically eligible for the NBA draft must declare. There are two ways to apply, one is to write a letter directly and mail it to the NBA headquarters, and the other is to send an email to the NBA draft office, and there will be a special staff member responsible for receiving the mail. If a player meets the criteria, the NBA will respond with a draft form, which the player will fill out and be approved by the league to enter the rookie shortlist. It should be noted that there is a time limit for filing, no later than 60 days before the draft, and the deadline for filing for the 2013 draft is April 23, local time.

Players who apply for the draft can participate in the NBA's draft camp and can also receive individual tryouts from NBA teams, which is an arrangement that allows the team to understand the players while giving the players a better estimate of their draft prospects, and if the situation is not very ideal, they can withdraw from the draft, which is especially important for NCAA players. For example, Justin Jackson of North Carolina, who signed up for the draft in 2016, but received feedback from NBA related people after the tryout that he should go back to school to make himself better, Jackson withdrew his draft application, returned to North Carolina and led the team to win the NCAA championship this season, and his individual ability has also improved significantly, making it to the first round of the 2017 draft prediction list.

There is also a time limit for withdrawing the declaration, no later than 10 days before the draft meeting. For NCAA players, it is earlier, according to the rules, no later than 10 days after the draft joint test. The 2013 draft joint test was held from May 9 to May 14, which means that NCAA players who want to withdraw their draft application must be no later than May 24 local time. NCAA players who have withdrawn their declaration can retain their college status as long as they have not hired an agent.

Objectively speaking, the NBA draft declaration conditions are not harsh, and there are even cases where ordinary fans declare the draft. In 2008, a fan named Feinstein, after carefully reviewing the draft rules, found that he met the requirements of being at least 19 years old and graduating from high school for one year, he wrote a declaration letter to the NBA official, in which he introduced himself as 1.72 meters tall and weighed 59 kilograms, and had never played an official game. It stands to reason that Feinstein's conditions would not have been selected at all, but the NBA officials respected the fans' ideals and did write back to him with an official application form. Of course, the end result was that Feinstein was not drafted, but he was at least a candidate and had a lot of fun.

The NBA will hold a lottery draw on May 16 to determine the team's draft spots, and after the tryouts and other pre-draft preparations are completed, the draft will be held, and the 2013 draft will be held on June 27.

On April 15, Beijing time, Li Mojie officially announced his participation in the 2013 NBA draft, which attracted widespread attention from the outside world for a while. This year's draft will be held on June 27, Beijing time.

He can then attend NBA teams' pre-draft training camps and individual tryouts to showcase his skills and get feedback on his draft picks.

As the draft draws closer, predicted rankings have also become the focus of attention. Li Mojie, who has been ranking better in the prediction rankings, is currently ranked first in the ranking of ESPN, a relatively authoritative draft website.

Another authoritative draft website, DraftExpress, predicted that he would be selected by the Suns with the first pick in the first round. In DraftExpress's view, Li Mojie's final pick should be around the top three. According to the website's analysis, they focused more on the problems that Li Mojie would expose when shooting and fighting, including inaccurate three-point shots, relatively low weight, and poor physical tolerance of Asian-American mixed-race children.

Joint tryouts for this year's NBA Draft are scheduled from May 11 to May 15 and are invitation-only, with NBA teams deciding which rookies to invite. In 2013, a total of 61 rookies participated in joint tryouts. The content of the joint trial includes physical test, interview, shooting training, drug test, 5-on-5 confrontation training, etc., but not all events are required. NBA coaches, general managers, and scouts are all in attendance during joint tryouts.

Individual tryouts will begin in mid-May and a few days before the draft begins, and it's also a great opportunity for many players who didn't play well in college to show off their strengths, so they're going to be very busy and flying around the country.

But for a player like Li Mojie, who performed well in college and is considered the top pick, he doesn't need to improve his pick in the draft camp in the past few days, nor does he need to go to the team after the top three. The only thing to do is not to make a mistake and not to get hurt. Activities that may cause injuries such as the confrontation will not be participated, and in the 5V5 confrontation, will Li Mojie definitely perform well? Which of the other nine people on the field doesn't want to improve their rank? Who has the final say in the distribution of the ball? Can they be like the Trojans with Lee at the core and let him control the ball? In this case, it's better not to fight, anyway, Li Mojie's data in college this year is a crushing situation for everyone else, do you like to choose or not.

Therefore, Li Mojie's agent Fleichel discussed with Li Mojie as soon as possible, only participating in the body side, other confrontations, and 5V5 confrontations will not participate.

In recent years, NBA team general managers and scouts have complained about the lack of competition among rookies in joint training camps, which has led to less and less point in examining player value. Since 2009, the NBA has invited about 60 rookies to participate in joint training camps, allowing them to do some shooting drills, as well as ball control drills, and some slight simulated confrontations.

Prior to 2009, the NBA used a 5-on-5 tournament called "pre-draft bootcamp" to examine these prospective players in Orlando, Florida, Chicago, etc., but former NBA commissioner David Stern changed that rule in early 2009 because many teams complained that rookies with high prediction picks did not participate in the matchup, resulting in training camp ending up with a group of rookies who were basically second-round prospects playing pointless matchups.

While the 2009 changes brought some of the top picks back to camp, the good times didn't last long, and the number of high-pick players refusing to participate in joint training camps intensified over the years.

In 2012, 11 players refused to participate in the skills training session of the joint training camp, including Anthony Davis, Gilchrist, Beal, Robinson, Drummond, Barnes, Witters, Sallinger, Lamb, Rivers Jr.; In 2013, Michael Carter Williams, Burke, Oladipo, Porter and others also did not participate; 2014 was even worse, Wiggins, Parker, Embiid did not participate in the joint training camp at all, and many players who appeared in the joint training camp also refused to do the skill test, only the physical test, including Exum, Randle, Gordon, Smart, etc.