I want to know the minimum traveling allowances amount i need to have for Entering china.

Sharon, there is no specific rule on this. Usually people from underdeveloped countries are required to provide a bank statement when they apply Chinese visas to enter China. It usually requires 100 USD per day. If you stay for 30 days, you should have 3000 USD in your account. But I seldom heard that people from UK are required to provide this when they apply Chinese visas.