By adopting grey system correlation analysis, carry out analysis NBA Miami Heat 5 competitions from Jan.10th to Jan.19th 2011, establish grey correlation analysis model. Calculate Miami Heat technical indicators and team ranking relational degree by mathematical software, solve teams each technical indicator and its performance correlation. Compare Miami Heat technical indicators and relational degree values in competition performance and make sorting, get the team indicators sort as inside shooting, field-goal percentage, layup, jump shot hit, free throw percentage, three-point shot percentage, fault times, fast break scoring, assist times, follow-up shot, block shot times, rebound totals, success dunk, steal times, secondary attack. With Miami Heat technical indicators and their scores relations, calculate team each technical indicator weight accounts for, make reasonable suggestions on team development according to each technical indicator weight.