Delivery of secure information and small size becomes a necessity in a communication within the network, to accommodate it needs to be cryptographic process which in this research using Blowfish algorithm for data security, and using Lempel-Ziv-Welch (LZW) algorithm for data compression , On the test done got that the compression result of ciphertext result of compression is smaller and also of course safer because indirectly ciphertext will happen change when compression process done.