The current filed experiments were conducted at Nubaria Region, El- Behira Governorate, Egypt during 2018 and 2019 seasons, to evaluate some maize genotypes for high protein and amino acids content. In this respect, in the first season, six maize single hybrids were planted in two group to granted flowering matching. The crossing had been done to get fifteen hybrids by half diallel design with enough grain for two years. Then, in the next season, the obtained hybrids grains were planted in blocks to determine the heterosis percentage (H %) based on mid and better parents for yield, yield components, protein and amino acids content. The results revealed that the 6 genotypes and 15 hybrid differed significantly in yield, its components, protein % and amino acids (%), where SC3062 X SC3737, SC444 X SC3737 recorded the highest values followed by (SC3062 X SC3737) and (SC3062 X SC444) then (SC2066 X SC3737) and (SC2066 X SC444). The results showed positive values of heterosis percentage between all the obtained hybrids that refer to the successful of hybridization. Amino acids values also showed significant variations between the maize hybrids.