Benefit: When you use the attack action, you can make one attack at your highest base attack bonus that deals additional damage. Roll the weapon’s damage dice for the attack three times and add the results together before adding bonuses from Strength, weapon abilities (such as flaming), precision-based damage, and other damage bonuses. These extra weapon damage dice are not multiplied on a critical hit, but are added to the total.
Can Vital Strike be used with Spring Attack? Can Vital Strike be used on a charge?
No. Vital Strike can only be used as part of an attack action, which is a specific kind of standard action. Spring Attack is a special kind of full-round action that includes the ability to make one melee attack, not one attack action. Charging uses similar language and can also not be used in combination with Vital Strike.
虽然不知道为啥paizo脑残写成 the atk action。但从编者回答里面可以看出VA是适用在特定单动作的攻击，而不是单纯的an atk。
来看Spring Attack的原文
引用
As a full-round action, you can move up to your speed and make a single melee attack without provoking any attacks of opportunity from the target of your attack.