The Computational Performance of implementing cryptographic block ciphers can be improved by exploiting parallel execution in Lab View (Laboratory Virtual Instrument Engineering Workbench). In this paper, we present a parallel processing method for block cipher algorithm: Data Encryption Standard (DES) based on software implementation in lab view. Test of common Lab view Program show on average, a 20 to 35 percent improvement in execution time in most Lab view code. Optimizing a Lab view program for a multicore computing is the best way to ensure the maximum speed up when running code on the multicore computing systems. The proposed approach can be implemented by using String To Byte Array Function, U8 To TF Array, Split 1D Array Function, Index Array Function, Array Subset Function, Build Array Function. In this we will give a file input which contains large amount of plane text which is divided each 8byte in table like manner with same key, when this file is given as input several 8byte of plaintext will be executed parallel.