This study aimed to measure  the accounting conservatism  and the lemited factors which  affected on it in the annual financial reports of insurance companies which listed on the Amman Stock Exchange during the period from 2005 to 2016, these factors were represented by firm age, firm debt and firm size.

Using the market value model (MV) To book value  ( BV) Beaver and Ryan (2000) The level of the accounting conservatism was measured. The study found that the insurance companies which are listed on the ASE exercise the accounting conservatism when they were  preparing financial reports. And when conducting a process  of the test of the affected of the factors (The age of the company and the debt of the company and the size of the company) As independent variables on the accounting conservatism (The dependent variable) The results showed that the factors used in the study have a significant effect on the level of Jordanian insurance companies' conservatism, The results of the study were analyzed in the statistical analysis of the relationship between the size of the company and the accounting conservatism, The companies were divided into large and small size companies , The results showed that the level of accounting reservation in large companies was high and there was a strong and direct relationship between them. In addition, when measuring the relationship between debt and Accounting Conservatism  Companies were assessed after being divided into high and low debt companies,  results showed that companies with high financial debts exercised accounting conservatism  , but low-debt companies don’t  exercise the accounting conservatism, While there was no relationship between the age of companies old-established and new established on the accounting conservatism, The study recommended that to  develop of a measure to measure the accounting of conservatism and do not exaggerate companies in applying the accounting of conservatism.