Abstract: This study focused on nine varieties of three leafy vegetables，including mustard，Chinese cabbage and flowering vegetables，through natural filed cultivation without film and conventional transparent film，as well as light-conversion film，three patterns to detect their influences on growth and development of different leafy vegetables. Results showed that all tested leafy vegetables growned best with highest fresh shoot weight under light- conversion technology film，followed by conventional transparent film，then naturally filed ithout film. The differences of fresh weight between three cultivation modes were differed with varieties. Generally，the fresh weight of mustard，Chinese cabbage and flowering cabbage under the light conversion film were 20.53%-23.40%，20.13%-32.62% and 16.43%-20.30% higher than vegetables cultivated in conventional transparent film mode，and 54.91%-67.08%，70.05%-101.52%，53.15%-136.85% higher than corresponding vegetables without film cover.