As the diversity of crypto assets grows, investors increasingly rely on Crypto Trackers to manage their portfolios. This article first explains the definition and core functions of crypto trackers, highlighting their role in centralized management, multi-platform integration, and asset analysis. Next, it provides a practical guide for selecting high-quality trackers based on five key dimensions: security, compatibility, user experience, feature set, and pricing models. Particularly in asset protection, the article emphasizes six critical measures: enabling two-factor authentication (2FA), choosing reputable platforms, regular updates, wallet security, phishing attack awareness, and limiting API permissions—helping users build a comprehensive security framework. For crypto beginners, this guide offers a clear and actionable reference, serving as an essential first step toward secure investment management.