An assembling die block includes a first main die having at least one first mounting section; a second main die having at least one second mounting section; at least one first matching die respectively having a first mating section to be correspondingly associated with the at least one first mounting section; and at least one second matching die respectively having a second mating section to be correspondingly associated with the at least one second mounting section. Wherein, there is a plurality of first mounting sections arrayed in a matrix; or there is a plurality of second mounting sections arrayed in a matrix; or there is a plurality of first mounting sections arrayed in a matrix and a plurality of second mounting sections arrayed in a matrix. An assembling apparatus using the above assembling die block is also disclosed.