The utility model relates to a flash program programming device capable of simultaneously connecting multiple modules, and belongs to the electronic technology field. The flash program programming device capable of simultaneously connecting the multiple modules comprises a program downloading unit, a programming plate and at least two programming units, wherein the programming plate comprises a master control chip, program programming interfaces and a JTAG interface, one port of the master control chip is connected with the program downloading unit through the JTAG interface, and the other port of the master control chip is connected with all the programming units through the program programming interfaces. The flash program programming device capable of simultaneously connecting the multiple modules can simultaneously perform erasure, and procedure code writing and reading verification on flash chips of N modules to be programmed through N programming units, can respectively detect effectiveness of the flash chips and the modules of all channels, can respectively enable all node modules to run and verify program loading and running effectiveness after programming is completed, and further can indicate the programming progress during the programming process through a status indicator lamp, indicates the module which is finally inspected successfully after the programming is completed, and thereby greatly improves program programming efficiency.