A sustainable insurance claim requires a valid policy, an incidence loss, and a causation between loss and insured peril. In civil procedure, the regime of burden of proof means if the court is left in doubt on a fact in issue, the doubt is resolved by a rule that one party or the other carries the burden of proof. Under insurance claim of insured peril, assured and insurers undertake different matters and standards of proof, depend on all risk insurance policy or named insurance policy.This article will focus on legal issues between interpretation of insurance policies coverage type and allocation of the burden of proof in insured peril. The author hopes this article would lay the foundation of relevant legal provisions amending and the practice of court.