In this paper, we present new attack method using a single power consumption trace, applicable to scalar multiplication algorithms proposed by M. Joye. The attack described in this paper uses the collision characteristic depending on the key bit, and can find the secret key even when all existing DPA countermeasures are applied to the scalar multiplication algorithm. In addition to the algorithms of M. joye, a lot of existing scalar multiplication algorithms have these collision characteristics. This means that these algorithms can be similarly analyzed by our attack.