The study is purposed to obtain the intention of behaviour and contributing factors such as attitude, subjective norm (SN) and perceived behavioural control (PBC) as adopted from belief, attitude, intention and behaviour theory. Data collected through distribute the questionnaires among 436 workers from all levels, top management, middle managers and workers. The safe behaviour intention is 4,37 (index 5) and short cut behaviour (SCB) is 2,59 (index 5). The highest values from index would indicate the positive behaviour. Means beta are attitude 9.22 (index 25); SN 18.95 (index 25) and PBC 4.30 (index 5). It may be seen that the most contributing factor is PBC. The study concludes that the implementation of safe behaviour in the company is already good and influenced by external factors (PBC) rather than internal or individual factors (safety attitude). Safety behaviour intention may be improved by increasing the awareness, responsibility and HSE competency among workers. It should be supported by effective supervising and effective safety leadership in every level of management.