The present disclosure illustrates a light-emitting diode module for plant growth. There are at least two LED chips in different wavelengths packaged with phosphor powder in certain wavelengths: a blue light LED chip (wavelength from 425 nm to 435 nm) covered by a silicone resin with red phosphor powder can emit a red light in a wavelength from 620 nm to 730 nm when being stimulated; another blue light LED chip (wavelength from 445 nm to 455 nm) covered by silicone resin with chartreuse phosphor powder mixture can emit a chartreuse light in a wavelength from 515 nm to 560 nm when being stimulated. The composite light spectrum generated from above LED chips and different types of the phosphor powder is close to the McCree photosynthesis spectrum, and it is an optimal spectrum for plant growth of the present disclosure.