By artificial fertilization , some mutual2cross experiments were conducted among transparent color crucian carp , red crucian carp , ornamental carp and red purse carp to detect the survival rates , growth speeds and body color separations of hybrids. The results indicated that the four kinds of carps can be crossed each other , and produce fries , with which the lowest hatching rate of self2crosses for ornamental carps is 46. 4 % , whereas 70 % -80 % for other combinations. After artificial feeding for 28 days , there were remarkable differences among hybrids in which the hybrids of transparent color crucian carp and red purse carp and ornamental carp by direct and reciprocal crosses had the slower growth and the lower survival rate than others. There were three body shapes of hybrids which were common carp body and intermediate body. The scale refractive tissues (rainbow cell or guanophore ) were divided into two types which were complete presence and absence. Interestingly , it was more complex and diverse in color separations. The hybrids produced by crosses between transparent color crucian carp and red crucian carp were transparent color. However , the hybrids were gray color when red crucian carp crossed with ornamental carp and red purse carp ; while there were two kinds of colors in hybrids when transparent color crucian carp crossed with the same two carps as red crucian carp.